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AT Commands for

RCV56ACx, RCV336ACx,

RCV288ACx, and RCV144ACx Modems

Reference Manual

(Preliminary)

Order No. 1048

Rev. 4, February 20, 1997

Summary of content (186 pages)

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AT Commands for RCV56ACx, RCV336ACx, RCV288ACx, and RCV144ACx Modems Reference Manual (Preliminary) Order No. 1048 Rev.
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AT Command Reference Manual NOTICE Information furnished by Rockwell International Corporation is believed to be accurate and reliable. However, no responsibility is assumed by Rockwell International for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Rockwell International other than for circuitry embodied in Rockwell products.
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AT Command Reference Manual PREFACE This manual supersedes the following manuals: 1. AT Command Reference Manual for the RC288ACi and RC288ACL Modem Families (Order No. 1048, Rev.3, January 9, 1996). 2. Addendum 1 to AT Commands for RC288ACx and RC144ACx Modem Families (Order No. 1048R3A1, Rev.1, August 2, 1996). This revision incorporates Addendum 1 to AT Commands for RC288ACx and RC144ACx Modem Families (Order No. 1048R3A1, Rev.
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AT Command Reference Manual Table of Contents 1. INTRODUCTION ...........................................................................................................................................................1-1 1.1 OVERVIEW ..........................................................................................................................................................1-1 1.1.1 Command Syntax ..................................................................................................
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AT Command Reference Manual &Jn - Telephone Jack Control............................................................................................................. 3-15 &Kn - Flow Control .............................................................................................................................3-15 &Ln - Leased Line Operation .............................................................................................................. 3-15 &Mn - Asynchronous/Synchronous Mode Selection ..
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AT Command Reference Manual Example of Formatted Form Reporting ............................................................................................ ...3-37 Unformatted Form Reporting ..............................................................................................................3-37 Example of Unformatted Form Reporting .......................................................................................... ..3-37 3.7 CELLULAR COMMANDS................................................
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AT Command Reference Manual CONNECT 26400 (63)........................................................................................................................ 3-45 CONNECT 28800 (64)........................................................................................................................ 3-46 COMPRESSION: CLASS 5 (66) ......................................................................................................... 3-46 COMPRESSION: V.42 bis (67) ................................
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AT Command Reference Manual S0 - Number of Rings to Auto-Answer ............................................................................................ ......4-4 S1 - Ring Counter.................................................................................................................................4-4 S2 - Escape Character .......................................................................................................... ...............4-4 S3 - Carriage Return Character ................
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AT Command Reference Manual 5.1.9 Fax Data Reception .................................................................................................................................5-3 5.2 COMMANDS ........................................................................................................................................................5-4 +FCLASS=n - Select Service Class ......................................................................................................
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AT Command Reference Manual 6.4.1 +FCON, Facsimile Connection Response .............................................................................................. 6-13 6.4.2 +FDCS:, Report Current Session Capabilities ........................................................................................ 6-13 6.4.3 +FDIS:, Report Remote Station Capabilities........................................................................................... 6-13 6.4.4 +FCFR, Indicate Confirmation to Receive ......
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AT Command Reference Manual Voice to Data........................................................................................................................................7-9 Unsuccessful Data Connection Attempt to Voice...................................................................................7-9 7.2.10 Caller ID ................................................................................................................................................7-9 7.3 AT VOICE COMMAND SUMMARY......
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AT Command Reference Manual 8.4 W-CLASS COMMANDS........................................................................................................................................8-5 8.5 CALLER ID COMMANDS .....................................................................................................................................8-5 8.6 FAX CLASS 1 ....................................................................................................................................................
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AT Command Reference Manual List of Tables Table 3-1. Result Codes ..................................................................................................................................................3-11 Table 3-2. Remote Modem Configuration and Resulting Transmit Levels ......................................................................... 3-41 Table 4-1. S-Register Summary.....................................................................................................................
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AT Command Reference Manual 1. INTRODUCTION 1.1 OVERVIEW This manual describes the AT commands for the following Rockwell modem families: RC56ACi RCV56ACFL/SP RCV56ACF/SP RCV56ACF/SVD RC336ACi RC336ACL RC336ACFL/SP RCV336ACi/SP RCV336ACF/SP RCV336ACF/SVD RC288ACi RC288ACL RC288ACLW-GSM RCV288ACi/SP RC144ACi and RC144ATi RC144ACL and RC144ATL RC144ACG RC144ACF/ATF RC144ACFL/ATFL RCV144ACi/SP RCV144ACF/SP The descriptions apply to all these modems with any differences between modem product families noted.
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AT Command Reference Manual 1.1.3 Call Progress and Blacklisting Parameters The modem MCU firmware may be provided either in reconfigurable form or preconfigured form. Consult the specific firmware release notes for exact configuration information. Reconfigurable Form. The modem MCU firmware can be configured for operation in specific countries by the PCcompatible ConfigurACE II program.
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AT Command Reference Manual 2. COMMAND SYNTAX 2.1 DTE/DCE INTERCHANGE CIRCUITS Communication between the DTE and modem is half duplex (i.e., only one entity 'talks' at a time). 2.2 COMMAND SYNTAX AND GUIDELINES 2.2.1 DTE Commands The ISO 646 character set (CCITT T.50 International Alphabet 5, American Standard Code for Information Interchange) is used for the issuance of commands and responses. Only the low-order 7 bits of each character are used for commands or parameters; the high-order bit is ignored.
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AT Command Reference Manual 3. AT COMMAND SET 3.1 AT COMMAND GUIDELINES The basic AT commands used to control modem operation are defined in this section. These commands are summarized in Appendix A. All these commands may not be available in a specific product depending upon supported data rates and modes. The default values are typical of a fully configured modem supporting all data rates and options. The actual default value is dependent upon modem firmware as defined by the firmware release notes. 3.1.
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AT Command Reference Manual 3.2 AT COMMAND SET The modem will respond to the commands detailed below. Parameters applicable to each command are listed with the command description. The defaults shown for each configuration command are those used in the Rockwell factory profile 0. 3.2.1 AT Commands A/ - Re-execute Command The modem behaves as though the last command line had been re-sent by the DTE. "A/" will repeat all the commands in the command buffer.
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AT Command Reference Manual Cn - Carrier Control This command is included for compatibility only, and has no effect other than returning a result code. The only valid parameter is 1. Result Codes: OK n = 1. ERROR Otherwise. Dn - Dial This command directs the modem to go on-line, dial according to the string entered and attempt to establish a connection. If no dial string is supplied, the modem will go on-line and attempt the handshake in originate mode.
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AT Command Reference Manual @ Wait for silence: the modem will wait for at least 5 seconds of silence in the call progress frequency band before continuing with the next dial string parameter. If the modem does not detect these 5 seconds of silence before the expiration of the call abort timer (S7), the modem will terminate the call attempt with a NO ANSWER message. If busy detection is enabled, the modem may terminate the call with the BUSY result code.
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AT Command Reference Manual Fn - Select Line Modulation (RC144 Models Only) This command selects the line modulation according to the parameter supplied. The line modulation is fixed unless Automode is selected. This command interacts with the S37 and the N command. The parameter value, if valid, is written to S37 bits 0-4. To select line modulation, it is recommended that either the F command, or a combination of the S37 and the N command, be used, but not both. F0 Selects auto-detect mode.
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AT Command Reference Manual Hn - Disconnect (Hang-Up) This command initiates a hang up sequence. This command may not be available for some countries due to PTT restrictions. H0 The modem will release the line if the modem is currently on-line, and will terminate any test (AT&T) that is in progress. Country specific, modulation specific, and error correction protocol specific (S38) processing is handled outside of the H0 command. H1 If on-hook, the modem will go off-hook and enter command mode.
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AT Command Reference Manual Mn - Speaker Control This command selects when the speaker will be on or off. The parameter value, if valid, is written to S22 bits 2 and 3. M0 Speaker is always off. M1 Speaker is on during call establishment, but off when receiving carrier. (Default.) M2 Speaker is always on. M3 Speaker is off when receiving carrier and during dialing, but on during answering. Result Codes: OK n = 0 to 3. ERROR Otherwise.
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AT Command Reference Manual P - Set Pulse Dial Default This command forces pulse dialing until the next T dial modifier or T command is received. Sets S14 bit 5. As soon as a dial command is executed which explicitly specifies the dialing mode for that particular call (e.g., ATDT...), this command is overridden so that all future dialing will be tone dialed. (See T command.) This command may not be permitted in some countries.
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AT Command Reference Manual T - Set Tone Dial Default This command forces DTMF dialing until the next P dial modifier or P command is received. The modem will set an SRegister bit to indicate that all subsequent dialing should be conducted in tone mode. Note that the DP command will override this command. Clears S14 bit 5. This command may not be permitted in some countries. (See P.) Result Code: OK Vn - Result Code Form This command selects the sending of short-form or long-form result codes to the DTE.
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AT Command Reference Manual Xn - Extended Result Codes This command selects which subset of the result messages will be used by the modem to inform the DTE of the results of commands. Blind dialing is enabled or disabled by country parameters. If the user wishes to enforce dial tone detection, a "W" can be placed in the dial string (see D command). Note that the information below is based upon the default implementation of the X results table.
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AT Command Reference Manual Table 3-1.
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AT Command Reference Manual Table 3-1. Result Codes (Cont'd) Short Form Long Form n Value in ATXn Command Notes 0 1 2 3 4 63 CONNECT 26400 1 x x x x Note 2 64 CONNECT 28800 1 x x x x Note 2 66 COMPRESSION: CLASS 5 x x x x x 67 COMPRESSION: V.
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AT Command Reference Manual Yn - Long Space Disconnect This command enables/disables the generation and response to long space disconnect. The parameter value, if valid, is written to S21 bit 7. Y0 Disables long space disconnect. (default.) Y1 Enables long space disconnect. In non-error correction mode, the modem will send a long space of four seconds prior to going on-hook. In non-error correction mode, the modem will respond to the receipt of a long space (i.e., a break signal greater than 1.
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AT Command Reference Manual 3.2.2 AT& Commands &Cn - RLSD (DCD) Option The modem controls the RLSD output in accordance with the parameter supplied. The parameter value, if valid, is written to S21 bit 5. &C0 RLSD remains ON at all times. &C1 RLSD follows the state of the carrier. (Default.) Result Codes: OK n = 0 or 1. ERROR Otherwise. &Dn - DTR Option This command interprets the ON to OFF transition of the DTR signal from the DTE in accordance with the parameter supplied.
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AT Command Reference Manual &Gn - Select Guard Tone The modem generates the guard tone selected by this command according to the parameter supplied (DPSK modulation modes only). The parameter value, if valid, is written to S23 bits 6 and 7. &G0 Disables guard tone. (Default for US models.) &G1 Disables guard tone. &G2 Selects 1800 Hz guard tone. (Default for W-class models.) This command may not be permitted in some countries. Result Codes: OK n = 0 to 2. ERROR Otherwise.
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AT Command Reference Manual &Mn - Asynchronous/Synchronous Mode Selection This command determines the DTR operating mode. The modem treats the &M command as a subset of the &Q command. &M0 Selects direct asynchronous operation. Note that the command sequence &M0\N0 selects normal buffered mode, but the command sequence \N0&M0 selects direct mode. This is because the \N0 command is analogous to the &Q6 command. The value 000b is written to S27 bits 3, 1, and 0, respectively. (See &Q).
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AT Command Reference Manual &Qn - Sync/Async Mode This command is an extension of the &M command and is used to control the connection modes permitted. It is used in conjunction with S36 and S48. (Also, see \N.) NOTE: When the &Q0 to &Q4 command is issued to select the mode, the subsequent connect message will report the DCE speed regardless of the W command and S95 settings. &Q0 Selects direct asynchronous operation. The value 000b is written to S27 bits 3, 1, and 0, respectively. See &M0.
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AT Command Reference Manual &Rn - RTS/CTS Option This selects how the modem controls CTS. CTS operation is modified if hardware flow control is selected (see &K command). The parameter value, if valid, is written to S21 bit 2. &R0 In sync mode, CTS tracks the state of RTS; the RTS-to-CTS delay is defined by S26. In async mode, CTS is normally ON and will turn OFF only if required by flow control. &R1 In sync mode, CTS is always ON (RTS transitions are ignored).
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AT Command Reference Manual &V - Display Current Configuration and Stored Profiles Reports the current (active) configuration, the stored (user) profiles, and the first four stored telephone numbers. The stored profiles and telephone numbers are not displayed if the NVRAM is not installed or is not operational as detected by the NVRAM test during reset processing.
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AT Command Reference Manual &Wn - Store Current Configuration Saves the current (active) configuration (profile), including S-Registers, in one of the two user profiles in NVRAM as denoted by the parameter value. This command will yield an ERROR message if the NVRAM is not installed or is not operational as detected by the NVRAM test. The current configuration is comprised of a list of storable parameters illustrated in the &V command.
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AT Command Reference Manual 3.2.4 AT% Commands %En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward Controls whether or not the modem will automatically monitor the line quality and request a retrain (%E1) or fall back when line quality is insufficient or fall forward when line quality is sufficient (%E2). The parameter value, if valid, is written to S41 bits 2 and 6. If enabled, the modem attempts to retrain for a maximum of 30 seconds.
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AT Command Reference Manual %7 - Plug and Play Serial Number %7<8 hex numbers> - Sets Plug and Play Serial Number Sets and stores eight serial numbers in hex format used for serial Plug and Play and for ISA Plug and Play which use the Rockwell 11575 Plug and Play device. Example: AT%7<8 hex numbers> Result Codes: OK <8 hex numbers> ERROR Otherwise To display the stored serial number, issue AT"?.
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AT Command Reference Manual 3.2.5 AT\ Commands \Kn - Break Control Controls the response of the modem to a break received from the DTE or the remote modem or the \B command according to the parameter supplied. The parameter value, if valid, is written to S40 bits 3, 4, and 5. The response is different in three separate states. The first state is where the modem receives a break from the DTE when the modem is operating in data transfer mode: \K0 Enter on-line command mode, no break sent to the remote modem.
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AT Command Reference Manual \Nn - Operating Mode This command controls the preferred error correcting mode to be negotiated in a subsequent data connection. This command is affected by the OEM firmware configuration. \N0 Selects normal speed buffered mode (disables error-correction mode). (Forces &Q6.) \N1 Serial interface selected - Selects direct mode and is equivalent to &M0, &Q0 mode of operation. (Forces &Q0.) Parallel interface selected - Same as \N0. \N2 Selects reliable (error-correction) mode.
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AT Command Reference Manual Voice and Data = Blank for Data mode only. “SVD” for AudioSpan analog simultaneous audio/voice and data. “DSVD” for G.729A or DigiTalk digital simultaneous voice and data. 3.2.
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AT Command Reference Manual Subparameter Definitions 1. = A decimal number which specifies the preferred modulation (automode enabled) or the modulation (automode disabled) to use in originating or answering a connection. The options are: Modulation 0 1 2 3 9 10 11 V.21 V.22 V.22 bis V.23 V.32 V.32 bis V.
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AT Command Reference Manual c. To emulate issuance of the N0S37=x command sequence to select fixed mode operation, specify the and both to be the (same) requested speed, and to be the modulation for that speed. For example: +MS=11,0,16800,16800 selects V.34 16800 bps fixed mode (no comparable S37 command). +MS=10,0,12000,12000 selects V.32 bis 12000 bps fixed mode (same as N0S37=10). For = 1 (automode enabled, i.e.
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AT Command Reference Manual +Hn - Enable/Disable RPI and DTE Speed This command enables or disables Rockwell Protocol Interface (RPI) processing and sets the DTE speed. (Applicable only to modems supporting RPI and RPI+). +H0 Disable protocol interface and video ready mode. +H1 Enable RPI mode and set DTE speed to 19200 bps. +H2 Enable RPI mode and set DTE speed to 38400 bps. +H3 Enable RPI mode and set DTE speed to 57600 bps. +H11 Enable RPI+ mode (applicable only to modems supporting RPI).
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AT Command Reference Manual 3.2.7 AT** Command ** - Download to Flash Memory The linear flash memory downloader in the modem firmware allows flash memory connected to the modem external memory bus to be upgraded with revised modem firmware. This process transfers (uploads) the upgraded modem firmware (data) from the host computer to the modem which transfers (downloads) the data to the flash memory device.
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AT Command Reference Manual 3.2.8 AT- Commands -SDR=n - Enable/Disable Distinctive Ring This command enables or disables detection and reporting of distinctive ring. The syntax is AT-SDR=n, where n is a number from 0 to 7. One, two, or three distinctive ring types can be simultaneously enabled depending upon the value of n (bit mapped). The detected ring type is reported in the long form (verbose) of the result code by appending the ring type number to the end of the RING message.
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AT Command Reference Manual 3.3 ERROR DETECTION AND DATA COMPRESSION COMMANDS 3.3.1 AT% Commands %C - Enable/Disable Data Compression Enables or disables data compression negotiation. The modem can only perform data compression on an error corrected link. The parameter value, if valid, is written to S41 bits 0 and 1. %C0 Disables data compression. Resets S46 bit 1. %C1 Enables MNP 5 data compression negotiation. Resets S46 bit 1. %C2 Enables V.42 bis data compression. Sets S46 bit 1.
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AT Command Reference Manual 3.4 MNP 10 COMMANDS 3.4.1 AT) Commands )Mn - Enable Cellular Power Level Adjustment This command is included only for compatibility and performs no function. )M0 )M0 command. )M1 )M1 command. )M2 )M2 command. Result Codes: OK n = 0 to 2. ERROR Otherwise. *Hn - Link Negotiation Speed This command is included only for compatibility and performs no function. *H0 *H0 command. *H1 *H1 command. *H2 *H2 command. Result Codes: OK n = 0 to 2. ERROR Otherwise.
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AT Command Reference Manual -SEC=n - Enable/Disable MNP10-EC Enables or disables MNP10-EC operation. The command format is: -SEC=n,[] where is the optional transmit level sub parameter. -SEC=0 Disable MNP10-EC; the transmit level is that defined in S91. -SEC=1,[] Enable MNP10-EC; the transmit level will be defined by the sub parameter range 0 to 30 (0 dBm to -30 dBm), the default ( not specified) is the S91 value.
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AT Command Reference Manual 3.5 W-CLASS COMMANDS 3.5.1 AT* Commands *B - Display Blacklisted Numbers This command requests the modem to return a list of blacklisted numbers to the DTE. The format of the response is shown by the example below. Permanently forbidden numbers as defined by country requirements will not appear on this list. If no numbers are blacklisted, only the OK result code is issued. Example: NO.
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AT Command Reference Manual *NCn - Country Select Up to four sets of country parameters may be stored in the EPROM. This command checks to see if the entered number matches the country code of one of the countries stored in the EPROM. If found, the modem stores the location of that country in NVRAM. Upon power up or a soft reset (Z command), the modem uses this location to load the parameters for the corresponding country.
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AT Command Reference Manual 3.6 CALLER ID COMMANDS 3.6.1 AT#CID Command #CIDn - Caller ID Enables or disables Caller ID. #CID=0 Disables Caller ID. (Default.) #CID=1 Enables Caller ID with formatted presentation to the DTE. The modem will present the data items in a pair format. The expected pairs are data, time, caller code (telephone number), and name. #CID=2 Enables Caller ID with unformatted presentation to the DTE.
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AT Command Reference Manual Example of Formatted Form Reporting 1. The following example illustrates the standard Caller ID message packet. RING DATE TIME NMBR NAME = = = = 0321 1405 5045551234 A N OTHER RING RING 2. The following example illustrates the case where the tag of the packet is not recognized by the modem. RING MESG = 060342424231 RING RING Unformatted Form Reporting The modem presents all information and packet control information found in the message.
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AT Command Reference Manual 3.7 CELLULAR COMMANDS The Direct Connect Modem allows a direct interface to most cellular telephones eliminating the need for other intelligent interfaces. Landline modems operate with the telephone system by either going off hook detecting dialtone and the dialing the telephone number using pulses or DTMF digits, or detecting the RING signal and answering the call.
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AT Command Reference Manual ^T6 - Indicate Status of Cellular Phone The status of the cellular phone connected to the modem is reported in response to the ^T6 command. The status is reported in a single byte formatted as a decimal number.
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AT Command Reference Manual In V.34 modems if MNP10-EC is enabled manually (using AT-SEC=1) no particular modulation will be chosen, therefore if the user wishes to force V.32bis modulation they should use the AT+MS=10,1,minspeed,maxspeed command (e.g. AT+MS=10,1,4800,12000 would force V.32bis and limit the speed between 4800 and 12000 bps). To allow V.34 modulation use AT+MS=11,1,minspeed,maxspeed (e.g. AT+MS=11,1,4800,19200 would allow V.34 speeds between 4800 and 19200). When MNP10-EC is enabled in V.
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AT Command Reference Manual Table 3-2. Remote Modem Configuration and Resulting Transmit Levels Remote Modem Configuration V.34 Direct Connect AT&F AT&F-SEC=1,x V.32bis Direct Connect AT&F AT&F-SEC=1,x V.34 PSTN AT&F V.32bis PSTN AT&F Base Site Configuration (Connected to PSTN) AT&F-SEC=0,x V.34 V.32bis Mod = V.32bis Mod = V.32bis Mode = -EC Mode = Single -EC RTxlv = Driver RTxlv = Driver BTxlv = x BTxlv = -10 Mod = V.34 Mod = V.
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AT Command Reference Manual 3.8 AT COMMAND RESULT CODES The modem responds to commands from the DTE and to activity on the line by signalling to the DTE in the form of result codes. The result codes that the modem can send are described below. Two forms of each result code are available: long-form, an English-like "verbose" response, and short-form, a data-like numeric response (included in parentheses following the long-form). The long-form code is preceded and terminated by the sequence < CR> < LF>.
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AT Command Reference Manual BUSY (7) For X3 and X4, if busy tone detection is enforced, the modem sends this result code when attempting to originate a call if the busy (engaged) signal is detected on the line. NO ANSWER (8) The modem sends this result code when attempting to originate a call if a continuous ringback signal is detected on the line until the expiration of the timer S7. CONNECT 0600 (9) For X1, X2, X3, and X4, the modem sends this result code when: 1.
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AT Command Reference Manual 2. The DTE speed is 19200 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting. CONNECT 38400 (17) For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 38400 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
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AT Command Reference Manual CARRIER 7200 (49) The modem sends this result code when a 7200 bps data rate has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.) CARRIER 9600 (50) The modem sends this result code when a 9600 bps data rate has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.) CARRIER 12000 (51) The modem sends this result code when a 12000 bps data rate has been detected on the line and carrier reporting has been enabled.
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AT Command Reference Manual CONNECT 28800 (64) For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 28800 bps and the modem has been instructed to report the DTE speed upon connecting. COMPRESSION: CLASS 5 (66) This message is sent to the DTE when the modem has connected in MNP Class 5 and COMPRESSION message reporting has been enabled. (See S95 and Xn.) COMPRESSION: V.42 bis (67) This message is sent to the DTE when the modem has connected in V.
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AT Command Reference Manual CARRIER 36000 (152) The modem sends this result code when a 36000 bps data rate has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.) CARRIER 38000 (153) The modem sends this result code when a 38000 bps data rate has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.
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AT Command Reference Manual CONNECT 38000 (168) For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 38000 bps and the modem has been instructed to report the DTE speed upon connecting. CONNECT 40000 (169) For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 40000 bps and the modem has been instructed to report the DTE speed upon connecting.
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AT Command Reference Manual 3.9 AUDIOSPAN AND DSVD COMMANDS AudioSpan and DSVD are two technologies that allow simultaneous voice and data operation using a Rockwell modem connected to a telephone line. AudioSpan and DSVD implementations differ in the manner that voice and modem data are combined. Voice and data channels are combined in the analog domain for AudioSpan and in the digital domain for DSVD. Establishing a AudioSpan or DSVD connection is analogous to establishing a regular data modem connection.
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AT Command Reference Manual Notes AudioSpan audio quality is dependent upon modulation mode, data rate and telephone line quality. Some guidelines are: 1. Higher quality telephone lines provide better audio quality than impaired telephone lines. 2. A lower data speed with audio provides better audio quality than higher data speed with audio. For example, a ML288/9600 connection will be audibly superior to a ML288/14400 connection. 3. For identical data speed with audio using different modulations (e.g.
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AT Command Reference Manual 3.9.3 Commands Supported Only by AudioSpan The following commands are applicable only for modems supporting AudioSpan mode. The command has no effect in DSVD mode. Modems that supports DSVD but not AudioSpan will report ERROR in response to these commands. -SQS= x, y - Select AudioSpan Modulation x: Select modulation mode 0= V.61 1= ML144 (Default for RCV144) 2= ML288 (Default for RCV288) y: Enable/disable AudioSpan automatic modulation (automode) selection (V.
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AT Command Reference Manual (0,1,2),(0,1) -SMC= x - Enable/Disable ML144 Data Burst 0= Disable data burst 1= Enable data burst (Default) ML144 data burst can be enabled using the -SMC command in ML144 modulation. Data burst will keep the audio channel open only when energy is detected on the handset or headset. When silence is detected in data burst mode, the connected modems will upshift in speed for higher throughput.
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AT Command Reference Manual 3.9.4 Examples Example 1: Establish a AudioSpan data connection between two RCV288 modems and use handset as audio interface. Both DTEs are set at 57600 bps: DTE Originate Modem DCE AT&F DTE AT&F OK AT-SMS=2 Answer Modem DCE Comments Reset modems. OK AT-SMS=2 OK Enable AudioSpan with default settings. OK ATDTxxxx Originate modem dials remote modem. RING ATA CONNECT 57600 CONNECT 57600 +++ Answer DTE responds to RING by answering.
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AT Command Reference Manual Example 2: Switch from normal handset conversation to AudioSpan data connection between two RCV288 modems. The originate DTE is set to 57600 bps and the answer DTE is set to 115200 bps: DTE Originate Modem DCE AT&F DTE Answer Modem DCE AT&F OK AT-SMS=2 OK AT-SMS=2 OK Enable AudioSpan with default settings. Modems are aware handsets are already being used due to line current sensing.
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AT Command Reference Manual Example 3: Switch from normal handset conversation to AudioSpan data connection between two RCV288 modems in normal (non-error corrected) mode. Headset operation will be selected on the originate modem and speakerphone operation will be selected on the answer modem as the audio interface during AudioSpan connection. The originate DTE prefers a ML288/14400 connection for good audio quality and does not require high throughput.
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AT Command Reference Manual Example 4: Establish a ML144/7200 data connection between two RCV288 modems in headset mode, then switch to handset later in the session so conversation can continue after modem call is hung up. This may be typical for configuring an interactive gaming software. Both DTEs are set at 38400 bps: DTE Originate Modem DCE AT&F DTE AT&F OK Answer Modem DCE Comments Reset modems. OK AT-SQS=1 Select ML144 AudioSpan modulation.
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AT Command Reference Manual Example 5: Originate modem places speakerphone call to remote handset which is connected to the answer modem. The originate modem switches from speakerphone mode to establish a AudioSpan/Speakerphone data connection between two RCV288 modems. The originate DTE is set to 57600 bps and the answer DTE is set to 115200 bps: Originate Modem DTE DCE AT&F#CLS=8 #VLS=6#VRN=0 Answer Modem DTE DCE AT&F-SMS=2 #VLS=6 OK OK RING ATDT5551212 Comments Modems are reset.
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AT Command Reference Manual 3.10 SYNCHRONOUS ACCESS MODE 3.10.1 Synchronous Access Mode Commands Three commands support Synchronous Access Mode: +ES Enables and disables Synchronous Access Mode in the client or central site modem +ESA Configures the operation of the Synchronous Access Submode + ITF Selects Transmit Flow Control Thresholds Enabling Synchronous Access Mode enables the use of the 8-bit command characters defined in Table 9/V.80 of the Draft ITU-T Recommendation V.
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AT Command Reference Manual Reporting Selected Options The modem reports the selected options in response to the following command: +ES? The response is: +ES: ,, Example: +ES? +ES: 3,0,2 For the defaults.
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AT Command Reference Manual Specifies the CRC polynomial used while operating in Framed sub-Mode. The options are: 0 CRC generation and checking disabled (default). 1 In Framed sub-Mode, the 16-bit CRC is generated by the modem in the transmit direction, and checked by the modem in the receive direction. Specifies if Non Return to Zero Inverted (NRZI) encoding is to be used by the modem for transmit and receive data.
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AT Command Reference Manual + ITF - Transmit Flow Control Thresholds The +ITF command determines the flow control thresholds used by the modem for transmit data from the DTE.
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AT Command Reference Manual 4. S-REGISTERS The S-Registers are summarized in Table 4-1 along with their default values; registers denoted with an '*' may be stored in one of the two user profiles by entering the &Wn command. One of these profiles may be loaded at any time by using the Zn command. Registers or register fields quoted as “reserved” are reserved for current or future use by the firmware, or are permanently overridden by PTT limitations.
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AT Command Reference Manual Table 4-1.
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AT Command Reference Manual Table 4-1. S-Register Summary (Cont’d) Register Function Range Units Saved S40 General Bit-Mapped Options Status * S41 General Bit-Mapped Options Status * S42-S45 Reserved S46 Data Compression Control * S48 V.
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AT Command Reference Manual 4.2 S-REGISTER DEFINITIONS S0 - Number of Rings to Auto-Answer Sets the number of the rings required before the modem automatically answers a call. Setting this register to zero disables auto-answer mode. Range: 0-255 rings Default: 0 S1 - Ring Counter S1 is incremented each time the modem detects a ring signal on the telephone line. S1 is cleared if no rings occur over an eight second interval.
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AT Command Reference Manual S6 - Wait Time for Dial Tone Before Blind Dialing, or After “W” Dial Modifier (W-Class Models) 1. Sets the length of time, in seconds, that the modem will wait before starting to dial after going off-hook when blind dialing. This operation, however, may be affected by some ATX options according to country restrictions. The “Wait for Dial Tone” call progress feature (W dial modifier in the dial string) will override the value in register S6. 2.
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AT Command Reference Manual S12 - Escape Prompt Delay (EPD) Defines the maximum period, in fiftieths of a second, allowed between receipt of the last character of the three escape character sequence from the DTE and sending of the OK result code to the DTE. If any characters are detected during this time, the OK will not be sent. Note that sending of the OK result code does not affect entry into command mode. (See 3.1.3.
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AT Command Reference Manual S16 - General Bit Mapped Test Options Status Indicates the test in progress status. Default: 0 Bit 0 Local analog loopback 0= Disabled (Default.) 1= Enabled (&T1) Bit 1 Not used Bit 2 Local digital loopback Bit 3 0= Disabled (Default.) 1= Enabled (&T3) Remote digital loopback (RDL) status Bit 4 0= Modem not in RDL (Default.) 1= RDL in progress RDL requested (AT&T6) Bit 5 0= RDL not requested (Default.
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AT Command Reference Manual S19 - AutoSync Bit Mapped Options Defines the options for AutoSync operation (see &Q4 command). S19 must be set to the desired value before &Q4 is issued. Default: 0 Bit 0 Reserved Bit 1 BSC/HDLC format select Bit 2 0= BSC selected (Default.) 1= HDLC selected Address detection enable/disable Bit 3 0= Disabled (Default.) 1= Enabled NRZI/NZI coding select Bit 4 0= NRZI (Default.) 1= NZI Idle indicator select Bits 5 - 7 0= Mark idle (Default.
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AT Command Reference Manual S21 - V.24/General Bit Mapped Options Status Indicates the status of command options. Default: 52 (34h) (00110100b) Bit 0 0= &J0 (Default.) 1= &J1 Bit 1 Reserved Bit 2 CTS behavior (&Rn) Bits 3-4 Bit 5 Bit 6 Bit 7 1048 Set by &Jn command but ignored otherwise. 0= CTS tracks RTS (&R0) 1= CTS always on (&R1) (Default.) DTR behavior (&Dn) 0= &D0 selected 1= &D1 selected 2= &D2 selected (Default.
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AT Command Reference Manual S22 - Speaker/Results Bit Mapped Options Status Indicates the status of command options. Default: 117 (75h) (01110101b) Bits 0-1 Bits 2-3 Bits 4-6 Bit 7 4-10 Speaker volume (Ln) 0= Off (L0) 1= Low (L1) (Default.) 2= Medium (L2) 3= High (L3) Speaker control (Mn) 0= Disabled (M0) 1= Off on carrier (M1) (Default.) 2= Always on (M2) 3= On during handshake (M3) Limit result codes (Xn) 0= X0 4= X1 5= X2 6= X3 7= X4 (Default.
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AT Command Reference Manual S23 - General Bit Mapped Options Status Indicates the status of command options. Default: 62 (3Dh) (00111110b) Bit 0 Grant RDL Bits 1-3 Bits 4-5 Bits 6-7 0= RDL not allowed (&T5) (Default.) 1= RDL allowed (&T4) DTE Rate 0= 0 - 300 bps 1= 600 bps 2= 1200 bps 3= 2400 bps 4= 4800 bps 5= 9600 bps 6= 19200 bps 7= 38400 bps or higher (Default.) Assumed DTE parity 0= even 1= not used 2= odd 3= none (Default.) Guard tone (&Gn) 0= None (&G0) (Default.
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AT Command Reference Manual S27 - Bit Mapped Options Status Indicates the status of command options. Default: 73 (49h) (01001001b) Bits 0,1,3 Bit 2 Synchronous/asynchronous selection (&Mn/&Qn) 3 1 0 0 0 0 = &M0 or &Q0 0 0 1 = &M1 or &Q1 0 1 0 = &M2 or &Q2 0 1 1 = &M3 or &Q3 1 0 0 = &Q4 1 0 1 = &Q5 (Default.) 1 1 0 = &Q6 Leased line control (&Ln) 0= Bits 4 - 5 Bit 6 Dial up line (&L0) (Default.) Internal clock select (&Xn) 0= Internal clock (&X0) (Default.
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AT Command Reference Manual S28 - Bit Mapped Options Status Default: 0 Bits 0 - 1 Reserved Bit 2 Reserved (always 0). Bits 3 - 4 Pulse dialing (&Pn) Bit 5-7 0= 39%-61% make/break ratio at 10 pulses per second (&P0) (Default.
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AT Command Reference Manual S31 - Bit Mapped Options Status Default: 194 (C2h) (11000010b) Bit 0 Single line connect message enable/disable (\Vn) Bit 1 0= Messages controlled by S95, Wn and Vn (\V0) (Default) 1= Single line connect message (\V1) Auto line speed detection (Nn) Bits 2-3 Bits 4-5 Bits 6-7 0= Disabled (N0) 1= Enabled (N1) (Default.
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AT Command Reference Manual S36 - LAPM Failure Control Default: 7 (00000111b) Bits 0-2 Bits 3-7 1048 This value indicates what should happen upon a LAPM failure. These fallback options are initiated immediately upon connection if S48=128. If an invalid number is entered, the number is accepted into the register, but S36 will act as if the default value has been entered. 0= Modem disconnects. 1= Modem stays on-line and a Direct mode connection is established. 2= Reserved.
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AT Command Reference Manual S37 - Desired Line Connection Speed This register specifies the desired line connection speed. Notes: 1. When the Nn command is issued or the S37 register value is modified, the +MS command subparameters are updated to reflect the speed and modulation specified by the S37 value (see +MS command).
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AT Command Reference Manual S38 - Delay Before Forced Hang Up This register specifies the delay between the modem's receipt of the H command to disconnect (or ON-to-OFF transition of DTR if the modem is programmed to follow the signal), and the disconnect operation. Applicable to error-correction connection only. This register can be used to ensure that data in the modem buffer is sent before the modem disconnects. 1.
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AT Command Reference Manual S40 - General Bit Mapped Options Status Indicates the status of command options. Default: 104 (68h) (01101000b) Bits 0-1 0= Disable extended services (-K0) (Default) 1= Enable extended services (-K1) 2= Enable extended services (-K2) Bit 2 Reserved Bits 3-5 Break Handling (\Kn) Bits 6-7 4-18 MNP Extended Services (-Kn) 0= \K0 1= \K1 2= \K2 3= \K3 4= \K4 5= \K5 (Default.) MNP block size (\An) 0= 64 chars (\A0) 1= 128 chars (\A1) (Default.
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AT Command Reference Manual S41 - General Bit Mapped Options Status Indicates the status of command options. Default: 195 (C3h) (11000011b) Bits 0 -1 Bits 2, 6 Compression selection (%Cn) 0= Disabled (%C0) 1= MNP 5 (%C1) 2= V.42 bis (%C2) 3= MNP 5 and V.42 bis (%C3) (Default.) Auto retrain and fallback/fall forward (%En) Bit 6 Bit 2 0 0 = Retrain and fallback/fall forward disabled (%E0) 0 1 = Retrain enabled (%E1) 1 0 = Fallback/fall forward enabled (%E2) (Default.
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AT Command Reference Manual S82 - Break Handling Options S82 is for compatibility purposes only, changing this register will not have any affect. S86 - Call Failure Reason Code When the modem issues a NO CARRIER result code, a value is written to this S-Register to help determine the reason for the failed connection. S86 records the first event that contributes to a NO CARRIER message. The cause codes are: Range: 0, 4, 5, 9, 12, 13, or 14 Default: S86=0 Normal disconnect, no error occurred.
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AT Command Reference Manual S95 - Extended Result Codes The bits in this register can be set to override some of the Wn command options. A bit set to a 1 in this register will enable the corresponding result code regardless of the Wn setting. Also, refer to Table 3-1. Default: 0 1048 Bit 0 CONNECT result code indicates DCE speed instead of DTE speed. Bit 1 Append/ARQ to CONNECT XXXX result code in error-correction mode (XXXX = rate; see Table 3-1).
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AT Command Reference Manual 5. FAX CLASS 1 COMMANDS 5.1 FAX I/O PROCESSING The fax I/O interface supports asynchronous serial and parallel interfaces. The interface rate is 19200 bps. The character format is 8 bits data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered. Flow control using XON/XOFF (DC1/DC3) or RTS/CTS is provided.
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AT Command Reference Manual 5.1.5 Fax Answering Answering of fax calls is identical to answering of data calls with the exception that the modem enters the fax handshaking mode instead of the data handshaking mode after going off-hook. If +FAE=0, the modem, after sending answer tone, automatically enters fax mode (+FTH=3), sends the CONNECT message to the DTE, and starts sending FSK flags.
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AT Command Reference Manual , generates the ERROR message, and returns to command mode. The modem keeps looking for HDLC flags followed by more data from the remote, with the selected modulation scheme. If the modem detects a receive buffer overflow condition, it concludes that there was an FCS error in that frame. The modem will receive more frames only if a starting flag is detected and there is room in the receive buffer.
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AT Command Reference Manual 5.2 COMMANDS +FCLASS=n - Select Service Class +FCLASS=n command sets the active service class. Parameters: 0-2 Command options: +FCLASS=0 Select Data Mode (Default.) +FCLASS=1 Select Facsimile Class 1 +FCLASS=2 Select Facsimile Class 2 +F? - Report Active Configuration +F? interrogates the modem to determine the active configuration.
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AT Command Reference Manual +FTM=n - Transmit Data +FTM=n causes the modem to transmit data using the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook. Parameters: See Command options Command options: +FTM=24 +FTM=48 +FTM=72 +FTM=73 +FTM=74 +FTM=96 +FTM=97 +FTM=98 +FTM=121 +FTM=122 +FTM=145 +FTM=146 V.27 ter 2400 bps V.27 ter 4800 bps V.29 7200 bps V.17 7200 bps long V.17 7200 bps short V.29 9600 bps V.17 9600 bps long V.17 9600 bps short V.
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AT Command Reference Manual +FTH=n - Transmit Data with HDLC Framing +FTH=n causes the modem to transmit data using HDLC protocol and the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook. Parameters: See Command options. Command options: +FTH=3 +FTH=24 +FTH=48 +FTH=72 +FTH=73 +FTH=74 +FTH=96 +FTH=97 +FTH=98 +FTH=121 +FTH=122 +FTH=145 +FTH=146 V.21 channel 2 300 bps V.27 ter 2400 bps V.27 ter 4800 bps V.29 7200 bps V.17 7200 bps long V.
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AT Command Reference Manual Table 5-2.
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AT Command Reference Manual Table 5-3.
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AT Command Reference Manual 6. FAX CLASS 2 COMMANDS The fax class 2 commands are summarized in Table 6-1. 6.1 COMMAND SYNTAX AND GUIDELINES 6.1.1 DTE Commands The ISO 646 character set (CCITT T.50 International Alphabet 5, American Standard Code for Information Interchange) is used for the issuance of commands and responses. Only the low-order 7 bits of each character are used for commands or parameters; the high order bit is ignored. Upper case characters are equivalent to lower case characters.
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AT Command Reference Manual 3. Fax Class 2 commands can be separated by the “:” character. The “;” character can be omitted if desired. Note that non-data commands cannot be separated by the “;” which is allowed as a dial modifier. Table 6-1.
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AT Command Reference Manual 4. All Class 2 commands are assumed to be the final command on a command line. Additional characters will be ignored. 5. An ERROR message will be generated if any of the following conditions occur: a. A Class 1 command is received while in Class 2. b. A Class 2 command is received while in Class 1. c. A Class 1 or Class 2 action command is received while in data modem mode. d. A Class 2 read-only parameter is given the “=” form of a +F command (e.g., AT+FAXERR=5). e.
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AT Command Reference Manual 6.1.5 Session Status Reporting The DCE provides reports to the DTE on the status of a session. The DCE provides the following status reports: 1. Connection and hang up status: +FCON +FHNG:<0-255> 2. Requested DIS session parameters +FDIS: reports remote facsimile capabilities. Syntax: +FDIS: VR, BR, WD, LN, DF, EC, BF, ST 3. +FDCS: reports the negotiated parameters 4. Phase C prompts: XON, XOFF, DC2 5.
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AT Command Reference Manual 6.3.1 ATD, Originate a Call Syntax: ATD.... The DCE can support a DTE command to originate a call using the ATD command (see Section 3.2). If this command is unsuccessful, the DCE reports an appropriate failure or error type result code such as NO CARRIER, NO DIALTONE, or BUSY (see Section 3.3). If this call is successful, the typical DCE response is: ATDnn..nn +FCON [+FCSI:] +FDCS:
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AT Command Reference Manual 6.3.3 +FDT, Data Transmission Syntax: +FDT The +FDT command prefixes Phase C data transmission. When the DCE is ready to accept Phase C data, it issues the negotiation responses and the CONNECT result code to the DTE. In Phase B, the +FDT command releases the DCE to proceed with negotiation, and releases the DCS message to the remote station. In Phase C, the +FDT command resumes transmission after the end of a prior transmit data stream.
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AT Command Reference Manual Table 6-2. T.30 Session Subparameter Codes Label Description Normal, 98 lpi Fine, 196 lpi BR Bit Rate (See Note 1) +FDCS (originate) +FDIS (answer) 0 2400 bps/V.27 ter V.27 ter (2400 only) 1 4800 bps/V.27 ter V.27 ter 2 7200 bps/V.29 V.29, V.27 ter 3 9600 bps /V.29 or V.17 V.29, V.27 ter 4 12000 bps/V.33 or V.17 V.17, V.33, V.29, V.27 ter 5 14400 bps/V.33 or V.17 V.17, V.33, V.29, V.
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AT Command Reference Manual 6.3.4 +FET, Transmit Page Punctuation Syntax: +FET=[,,,] DCE response: +FPTS: - when receive from remote OK This command is used to punctuate page and document transmission after one or more +FDT commands. This command generates T.30 Post Page Messages selected by the code (Table 6-3). The +FET= command indicates that the current page is complete; no more data will be appended to it.
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AT Command Reference Manual 6.3.5 +FDR, Begin or Continue Phase C Receive Data Syntax: +FDR Default value: 3 seconds in some places The +FDR command initiates transition to Phase C data reception. This can occur after answering, dialing, a document is received, or a page is received. The DCE reports the negotiated T.30 parameters, with the remote ID information if available. When the DCE is ready to commence data transfer, it issues a CONNECT response code.
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AT Command Reference Manual Continue Document Reception The DTE may issue a +FDR command in Phase D, which releases the post page message, and indicates readiness to receive another page after receipt of a Multipage (+FET:0) or PPS-NULL (+FET:3) message.
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AT Command Reference Manual 6.3.7 +FCIG, Set Polling ID This command allows setting the Local Polling ID string used in a CIG frame. The syntax of this command is identical to +FLID. Write syntax: +FCIG="" Valid value: 20-character ASCII string Default value: Empty 6.3.8 +FLPL, Indicate a Document for Polling This command allows setting up an answering modem to know that it has a document available for polling. This allows a calling modem to receive this fax from the answerer.
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AT Command Reference Manual Table 6-5. Hang Up Status Codes Code Cause Description 0-9 Call Placement and Termination 0 Normal and proper end of connection 1 Ring Detect without successful handshake 2 Call aborted, from +FK or AN 3 No Loop Current 10-19 Transmit Phase A & Miscellaneous Errors 10 Unspecified Phase A error 11 No Answer (T.
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AT Command Reference Manual 6.4 SERVICE CLASS 2 DCE RESPONSES The DCE sends information responses to the DTE as a facsimile session proceeds. They indicate the state of the facsimile session and convey needed information. These messages are solicited messages generated in execution of DTE action commands described in Section 6.3. The DCE precedes and follows the information responses with . The DCE provides the on-line status of several session parameters when they are available during T.
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AT Command Reference Manual 6.4.7 +FPTS:, Receive Page Transfer Status Syntax: +FPTS:, [,, ] The +FPTS: is generated by the DCE at the end of Phase C data reception in execution of a +FDR command. The is generated by the DCE; it depends on the DCE capabilities at T.4 error checking. See Table 6-4 for values. The receiving DCE will count the lines.
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AT Command Reference Manual 6.4.11 +FCIG:, Report the Polled Station ID Syntax: +FCIG: “< ID string>” Polled Station ID This response reports the received transmit station ID string, if any. This message is generated in execution of Originate, Answer, +FDT, or +FDR commands. 6.4.12 +FDTC:, Report the Polled Station Capabilities Syntax: +FDTC: “< string>” Polled Station Capabilities If the answerer has a document to poll, it would be communicated to the originator in bit 9 of the DIS frame.
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AT Command Reference Manual 6.5 SERVICE CLASS 2 PARAMETERS All Service Class 2 parameters can be read, written, and tested for range of legal values by the DCE. The general syntax is described in Section 6.1. Group 3 FAX devices negotiate session parameters in DIS, DCS, and DTC frames. The following parameters are provided to condition the facsimile DCE for the capabilities it will offer and to report the session settings negotiated. The three primary T.30 session parameters are +FDCC, +FDIS and +FDCS.
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AT Command Reference Manual 6.5.3 +FDCS, Current Session Results Parameters Read syntax: +FDCS? DCE response: +FDCS=VR,BR,WD,LN,DF,EC,BF,ST or +FDCS= Valid values: See Table 6-2 Default values: 0,0,0,0,0,0,0,0 The +FDCS parameter is loaded with the negotiated T.30 parameters for the current session. A transmitting DCE generates DCS; a receiving DCE gets DCS from the remote station. The DTE may read this parameter.
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AT Command Reference Manual 6.5.4 +FLID=, Local ID String Write syntax: +FLID="" Valid value: 20-character ASCII string Default value: Empty If FLID is not a null string, it generates a TSI or CSI frame. Table 3/T.30 includes digits 0-9, “+” and space. If the DCE supports use of Table 3/T.30 only, the response to a +FLID=? command is “(20) (32, 43, 48-57).” If the DCE supports printable ASCII <, the response is: “(20) (32-127).
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AT Command Reference Manual The +FPHCTO command determines how long the DCE will wait for a command after reaching the end of data when transmitting in Phase C. When this time-out is reached, the DCE assumes there are no more pages and no documents to send. It then sends the T.30 EOP response to the remote device. 6.5.9 +FAXERR, T.
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AT Command Reference Manual 6.5.12 +FBUF?, Buffer Size Read syntax: +FBUF? DCE response syntax: , , , where: = total buffer size = XOFF threshold = XON threshold = current buffer byte count Example: +FBUF? 512, 506, 500, 0 The +FBUF parameter allows the DTE to determine the characteristics of the DCE's data buffer. Data buffers are used for flow control. Use of the reported values allow the DTE to transfer data without provoking XOFF. 6.
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AT Command Reference Manual Table 6-6. Send Two Pages, 1-D, No Errors DTE Command AT+CLASS=2 AT+FLID="" AT DCE Response OK OK +FCON [+FCSI:""] +FDIS: OK AT+FDT +FDCS: CONNECT <1st page data> AT+FET=0 AT+FDT <2nd page data> AT+FET=2 Remote Station Action x Answer, Send [CED] V.
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AT Command Reference Manual Table 6-7.
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AT Command Reference Manual 7. VOICE/AUDIO COMMANDS The modem is configured into Voice Mode (modem models not supporting business audio) or Voice/Audio Mode (modem models supporting business audio) in response to the AT #CLS=8 command, and this mode is composed of the Voice and Audio sub-configurations as described in this section. Additional voice/audio AT commands are available to support selection of operational parameters from both inside and outside the Voice/Audio Mode. a) Voice Sub-Configuration.
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AT Command Reference Manual In this mode, and when the sampling rate is 7.2 kHz, the modem detects and reports DTMF, dial tone, and busy tone cadence as enabled by the #VTD command. Additionally, the modem detects and reports inactivity (periods of silence) as enabled by the #VSS command. The modem can exit the Voice Receive Mode only via a DTE Key Abort, or via Disconnect Inactivity timer (S30) expiration. 7.1.
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AT Command Reference Manual 7.2.2 Call Establishment - Answer Directed Answer (Answer as a specific modem type) If the DTE wants to be only one kind of answerer (i.e., voice/audio, fax, or data), it can configure the modem to answer exclusively in the chosen mode. Voice/Audio The modem is configured to answer in Voice/Audio Mode only and assumes the caller will cooperate.
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AT Command Reference Manual 7.2.3 Voice/Audio Data Transfer A significant area of concern when handling the transfer of voice/audio data is the data transfer rate on the modem/DTE interface. Data transfer rates can be expressed as the number of interrupts which must be serviced per time period to keep up. This is a function of the sampling rate and compression method (if any) used by the modem, and the DTE interface speed required to handle the data flow on the telephone line side.
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AT Command Reference Manual Table 7-2. Codes Sent to the DTE Code Sent to DTE Meaning DTMF. Digits 0 through 9, *, #, or A through D detected by the modem, i.e., user has pressed a key 0 – 9, *, on a local or remote telephone. The modem sends only one code per DTMF button pushed. #, A –D Answer Tone (CCITT). Send to the DTE when the V.25/T.30 2100 Hz Answer Tone (Data or Fax) is a detected.
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AT Command Reference Manual Table 7-2. Shielded Codes Sent to the DTE (Cont’d) Code Sent to DTE Meaning Silence. Sent in Voice Receive Mode after the silence detection timer (#VSP) expires and if valid s voice has not been detected (#VSS). In general, s is sent if no sound was detected at all. This differs slightly from Quiet (q) in that it can be used by the DTE in its discrimination algorithms as a means of determining if anything at all is coming from the remote station.
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AT Command Reference Manual Table 7-3. Shielded DTE Codes Code Sent to Modem p r E u d 1048 Meaning Pause. Sent during Voice Transmit Mode to force the modem to suspend sending voice data to the selected output device(s). Any data currently in the voice transmit buffer is saved until either a resume (r), or cancel , is received, in which case the data is lost.
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AT Command Reference Manual 7.2.6 Voice Record To effect recording of a message received via a handset or microphone, the DTE must configure the modem for Voice Mode (#CLS=8), and select the proper relay setup (#VLS) to instruct the modem whether to use the auxiliary device. The modem responds to the #VLS command by issuing a relay activate command to select the input device. When a device other than the telephone line is selected, the modem immediately enters Online Voice Command Mode (indicated by VCON).
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AT Command Reference Manual 7.2.8 Voice Call Termination Local Disconnect The DTE can disconnect from a telephone call by commanding a mode change to Online Voice Command Mode (if not already in it), and by issuing the H command. Remote Disconnect Detection When in Voice Receive Mode, the modem sends the proper shielded code when dial tone or busy tone is detected. The modem stays in Voice Receive Mode, however, until the DTE issues a key abort to force Online Voice Command Mode.
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AT Command Reference Manual 7.3 AT VOICE COMMAND SUMMARY Table 7-4 provides a complete summary of the AT voice commands described in detail in Sections 7.3.1 and 7.3.2. Table 7-4. AT Voice Commands Command A D H Z #BDR #CID #CLS #MDL? #MFR? #REV? #TL #VBQ? #VBS #VBT #VCI? #VLS #VRA #VRN #VRX #VSD #VSK #VSP #VSR #VSS #VTD #VTM #VTS #VTX Function Answering in Voice/Audio Mode. Dial command in Voice/Audio Mode. Hang up in Voice/Audio Mode. Reset from Voice/Audio Mode. Select baud rate (turn off autobaud).
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AT Command Reference Manual ATA - Answering in Voice/Audio The answer action command works analogously to the way it works in Data and Fax Modes except for the following: 1. When configured for Voice/Audio Mode (#CLS=8), the modem enters Online Voice Command Mode immediately after going off-hook. When the #CLS=8 command is issued, the modem can be programmed to look for 1100 and 1300 Hz calling tones (see #VTD), thus eliminating the need to do so as part of A command processing.
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AT Command Reference Manual ATZ - Reset from Voice Mode This command works the same as in Data and Fax modes. In addition, the Z command resets all voice related parameters to default states, forces the #BDR=0 condition (autobaud enabled), and forces the telephone line to be selected with the handset on-hook. No voice parameters are stored in NVRAM so the profile loaded does not affect the voice aspects of this command. (Note that when #CLS=8, ATZ causes a hang up if the telephone line is connected.
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AT Command Reference Manual #CID=2 1048 Enables unformatted Caller ID reporting of any ICLID packet received after the first RING cycle including SDM, MDM, or call waiting packets.
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AT Command Reference Manual #CLS - Select Data, Fax, or Voice/Audio This command selects Data, Fax, or Voice/Audio Mode from operation in any mode. Parameters: n = 0, 1, 2, or 8 Default: 0 Result Codes: OK If n = 0, 1, 2, or 8. ERROR Otherwise. Command options: #CLS? Returns the current setting (0, 1, 2, or 8) of the #CLS command as an ASCII decimal value in result code format. #CLS=? Returns the message, “0, 1, 2, or 8”. #CLS=0 Data.
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AT Command Reference Manual 7.3.2 AT#V Commands Enabled Only in Voice Mode (#CLS=8) The commands described in the following subsection are extensions to the command set which the modem recognizes only when configured for Voice/Audio Mode with the #CLS=8 command. #TL- Audio Output Transmit Level This command provides adjustment of the transmit level of the data pump audio output, affecting both the playback level of the handset and speaker and telephone line.
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AT Command Reference Manual #VBT - Beep Tone Timer This command defines the time period, in 10ths of a second up to 4 seconds (40) which is used by the modem as the DTMF or fixed tone duration for generating tones while in Online Voice Command Mode. Parameters: n = 0 – 40 (0 – 4 seconds) Default: 10 Result Codes: OK If n = 0 – 40. ERROR Otherwise. Command options: #VBT? Returns the current setting of the #VBT command as an ASCII decimal value in result code format.
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AT Command Reference Manual #VLS - Voice Line Select This action command can be used to select which devices are routed through the modem. Parameters: n = 0-9 as supported by the modem model. [This is the device position number (not device number) as reflected in response to #VLS=?] Default: 0 Result Codes: OK If n = 0-9 as supported by the modem model. VCON If device selected does not connect to the telephone line.
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AT Command Reference Manual Table 7-5. Device Types Supported by #VLS ASCII Digit 0 1 2 3 4 5 6 7 8 9 7-18 Device Type and Considerations Telephone Line with Telephone handset. This is the default device selected. In this configuration, the user can pick up a handset which is connected to the same telephone line as the modem, and * record both sides of a conversation with a remote station.
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AT Command Reference Manual #VRA - Ringback Goes Away Timer (Originate) This command can be used, when originating a voice/audio call (#CLS=8) to set the “Ringback Goes Away” timer value, i.e., an amount of time (in units of 100 ms) measured from when the ringback cadence stops once detected. If ringback is not detected within this period, the modem assumes that the remote has picked up the line and switches to Online Voice Command Mode. Every time a ringback cycle is detected, this timer is reset.
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AT Command Reference Manual #VSD - Enable Silence Deletion (Voice Receive) [ADPCM] This command provides no function other than command response compatibility. Parameters: n = 0 or 1 Default: 0 Result Code: OK If n = 0 or 1. ERROR Otherwise. Command options: #VSD? Returns the current setting of the #VSD command as an ASCII decimal value in result code format. #VSD=? Returns the message, “0,1”. #VSD=0 Command provides no function other than command response compatibility.
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AT Command Reference Manual #VSP - Silence Detection Period (Voice Receive) [ADPCM] This command sets the Voice Receive Mode silence detection period (inactivity timer) value. The parameter, in units of 100 ms, can be used when receiving voice data. This is an amount of time, which if elapsed without receiving any ADPCM data, causes the modem to send the s or q codes after insuring that the buffer is empty. The modem determines what constitutes silence.
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AT Command Reference Manual #VSS - Silence Detection Tuner (Voice Receive) [ADPCM] This command enables or disables the Voice Receive mode silence detection, and controls the sensitivity employed by the modem in ADPCM compressing periods of silence. Parameters: n=0–3 Default: 0 Result Codes: OK If n = 0 – 3. ERROR Otherwise. Command options: 7-22 #VSS? Returns the current setting of the #VSS command as an ASCII decimal value in result code format. #VSS=? Returns the message “0,1,2,3".
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AT Command Reference Manual #VTD - DTMF Tone Reporting This command queries and controls which types of tones can be detected and reported to the DTE via shielded codes in Voice Transmit, Voice Receive, and Online Voice Command Modes. Parameters: i, j, k (three ASCII hexadecimal bit maps) Default: 3F, 3F, 3F Result Codes: OK If bits supported with #VTD=? are selected. ERROR Otherwise.
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AT Command Reference Manual #VTM - Enable Timing Mark Placement This command controls the placement of timing marks by the DCE in the data stream during ADPCM recording. Parameters: n=0 (disabled) or 10 (1 second interval) Default: n=0 (disabled) Result Codes: OK If n=0 or 10 ERROR Otherwise Command Options: #VTM? Returns the current setting of the #VTM command as an ASCII decimal value in result code format.
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AT Command Reference Manual #VTX - Voice Transmit This action command can be issued if and only if the modem is in the Online Voice Command Mode (indicated previously with the VCON message), and is the switch to Voice Transmit Mode. #VTX is used when a voice file is to be transmitted to the line, speaker, or handset. The #VLS command should have been previously issued to select the output source. Parameters: None Result Codes: CONNECT When voice transmission by DTE can begin.
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AT Command Reference Manual Originating a Call in Speakerphone Mode To initiate a call with the speakerphone, issue: AT#CLS=8 AT#VRN=0 AT#VLS=6 (Selects the speakerphone) It is recommended to set the VRN command to 0 which disables ringback detection before reporting the VCON message.
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AT Command Reference Manual Recording a Handset Conversation on the Phone Line To recording a handset conversation on the phone line, issue: AT#VLS=8 (valid after Voice On-line mode) This command engages the Caller ID relay to allow recording of conversation when using a handset by routing the signal to the audio codec (if populated). To deactivate the Caller ID relay, the host should issue an AT#VLS=0 or AT#VLS=6 to return to phone line or speakerphone mode, respectively.
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AT Command Reference Manual Speaker Output Attentuation Range: 0 to15 (speaker attenuation in 2 dB steps) 0 0 dB attenuation . 5 10 dB attenuation (default) . 15 30 dB attentuation 16 Speaker mute Microphone Gain Parameter Range: 0 to 3 0 0 dB gain 1 10 dB gain 2 15 dB gain (default) 3 20 dB gain 7-28 Except ACF/AFCL ACF/AFCL 0 0 dB 0 dB 1 6 dB gain (default) 10 dB gain 2 9.
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AT Command Reference Manual It is not necessary to enter all ,, options while issuing AT#SPK.
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AT Command Reference Manual 7.3.4 Using VoiceView with Speakerphone, Headset, and Handset modes Handset (#VLS=0), speakerphone (#VLS=6), or headset mode (#VLS=5) can be selected during VoiceView mode (+FCLASS=80), when dialing is done on the handset. The ATA command is not accepted while in VoiceView mode in accordance with the VoiceView Protocol specification. While in VoiceView mode, the modem can alternate between handset mode (#VLS=0) or speakerphone mode (#VLS=6) settings for voice conversation.
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AT Command Reference Manual Using Modem as Dialer Prior to VoiceView Mode To use the modem to dial a call, the modem must be in Voice On-line mode (via #CLS=8) to dial before enabling VoiceView mode. VoiceView mode can enabled by the AT+FCLASS=80 parameter after Voice On-line (VCON) mode in handset, speakerphone or handset emulation modes. The modem can be switched between handset (#VLS=0) and speakerphone (#VLS=6) modes during +FCLASS=80, as described in the previous section.
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AT Command Reference Manual 7.4 S-REGISTERS The following S-Register is global, meaning that it can be set in any appropriate mode (i.e., any #CLS setting). S30 - Disconnect Inactivity Timer Range: n = 0 – 255 Default: 0 (OFF, which means DTE should usually set it to some value for Voice) Command options: S30=0 Disconnect Inactivity timer off. No matter how long it might continue, the modem never spontaneously hangs up the telephone line or switches to autobaud mode as a result of inactivity.
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AT Command Reference Manual Table 7-7. Record a Greeting Message DTE to Modem Modem to DTE Description and Interpretation #CLS=8 Configure the modem for Voice Mode. OK The modem confirms command implemented, and is now set up for voice. #VBS=4 The DTE asks for 4-bit compression (ADPCM). The DTE needs to work at 38,400 bps since after start and stop bits are added, the speed increases to 36,000 bps. OK The modem is configured for 4-bit compression.
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AT Command Reference Manual Table 7-7. Record a Greeting Message [Cont’d] DTE to Modem Modem to DTE Description and Interpretation #VRX This tells the modem that the DTE is ready to receive a voice message at the current compression/sampling settings. CONNECT The modem tells the DTE that it can now expect data. The modem enters Voice Receive Mode. DTMF monitoring is still enabled as well as ADPCM data flow. User says: “Hello, this is me, press * to skip this message.
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AT Command Reference Manual Table 7-8. Playback a Greeting Message DTE to Modem Modem to DTE #CLS=8 OK #VBS=4 OK #BDR=16 OK #VLS=2 VCON #VTX CONNECT VCON 1048 Description and Interpretation Configure the modem for Voice Mode. The modem confirms command reception, and is now set up for voice. The DTE asks for 4-bit compression. The data from the DTE needs to travel at 38,400 bps since after start and stop bits are added, the speed increases to 36,000 bps.
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AT Command Reference Manual Table 7-9. Answer Call/Play Greeting/Record Message DTE to Modem Modem to DTE Description and Interpretation #CLS=8 Configure the modem for Voice Mode. Note that the #BDR setting is assumed to be zero here, meaning that no time-out occurs forcing #CLS=0. OK The modem agrees, and is now set up for voice. #VBS=4 The DTE asks for 4-bit compression for greeting message playback (ADPCM).
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AT Command Reference Manual Table 7-9. Answer Call/Play Greeting/Record Message [Cont’d] DTE to Modem Modem to DTE Description and Interpretation #VTX The DTE does not wait for any tones, and tells the modem that it is ready to send a voice greeting at the current compression and sampling settings (4-bit/7200). CONNECT The modem tells the DTE that it can now send data. The modem enters Voice Transmit Mode and DTMF monitoring is still enabled as well as the ADPCM data flow.
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AT Command Reference Manual Table 7-10. Call/Record Message/Receive Fax DTE to Modem Modem to DTE Description and Interpretation #CLS=8 Configure the modem for Voice Mode. OK The modem agrees, and is now set up for voice. #VBS=4 The DTE asks for 4-bit compression (ADPCM). The DTE needs to work at 38,400 bps since after start and stop bits are added the speed increases to 36,000 bps. OK The modem is configured for 4-bit compression. #VSS=2 Sets silence detection sensitivity to midrange.
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AT Command Reference Manual Table 7-10. Answer Call/Record Message/Receive Fax (Cont’d) DTE to Modem Modem to DTE Description and Interpretation #VRX The DTE instructs the modem to turn the line around and begin recording a message from the remote. CONNECT The modem sets things up and enables ADPCM data transfer to the DTE with the current silence sensitivity setting. ADPCM data is shipped to the DTE with shielded DTMF tones folded in.
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AT Command Reference Manual Table 7-11. Answer Call, Determine It's a Fax DTE to Modem Modem to DTE RING #CLS=8 OK #VBS=4 OK #BDR=16 OK #VSS =2 OK A VCON c #CLS=1 OK A 7-40 Description and Interpretation Sometime later, the next beta-site calls. Configure the modem for Voice Mode. The modem agrees, and is now set up for voice. The DTE asks for 4-bit compression (ADPCM). The DTE needs to work at 38,400 bps since after start and stop bits are added the speed increases to 36,000 bps.
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AT Command Reference Manual Table 7-12. Adaptive Fax/Data/Voice; Determine Data DTE to Modem Modem to DTE Description and Interpretation RING Sometime later, we receive a call. #CLS=8 Configure the modem for Voice Mode (still ADPCM). OK The modem agrees, and is now set up for voice, but the DTE can change things during the discrimination phase. #BDR=16 The DTE knows that the compression requires a 38,400 bps speed, so it forces this as the new speed.
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AT Command Reference Manual Table 7-13. Originate a Call, Send Answerer a Message DTE to Modem Modem to DTE Description and Interpretation #CLS=8 Configure the modem for Voice Mode (still ADPCM). OK The modem agrees, and is now set up for voice. #BDR=16 The DTE knows that compression requires a 38,400 bps speed, so it forces this as the new speed. OK This OK message is sent at 2400 bps, but the modem then switches to 38,400 bps. #VLS=0 This ensures that the telephone line is selected. OK The modem agrees.
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AT Command Reference Manual 8. AT COMMAND SET SUMMARY 8.1 BASIC AT COMMANDS Command A/ A B0 B1 C1 Dn E0 E1 F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 H0 H1 I0 I1 I2 I3 I4 I5 I6 I7 L0 L1 L2 L3 M0 M1 M2 M3 N0 N1 O0 O1 P Q0 Q1 Sn Sn? =v ? 1048 Function Re-execute command. Go off-hook and attempt to answer a call. Select V.22 connection at 1200 bps. Select Bell 212A connection at 1200 bps. Return OK message. Dial modifier. Turn off command echo. Turn on command echo. Select auto-detect mode (equivalent to N1).
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AT Command Reference Manual T V0 V1 W0 W1 W2 X0 X1 X2 X3 X4 Y0 Y1 Z0 Z1 &C0 &C1 &D0 &D1 &D2 &D3 &F0 &F1 &G0 &G1 &G2 &J0 &J1 &K0 &K3 &K4 &K5 &K6 &L0 Force DTMF dialing. Report short form (terse) result codes. Report long form (verbose) result codes. Report DTE speed in EC mode. Report line speed, EC protocol and DTE speed. Report DCE speed in EC mode. Report basic call progress result codes, i.e.
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AT Command Reference Manual &M0 &M1 &M2 Select direct asynchronous mode. Select sync connect with async off-line command mode. * Select sync connect with async off-line command mode and enable DTR dialing of directory zero. * &M3 Select sync connect with async off-line command mode and enable DTR to act as Talk/Data switch. * &P0 Set 10 pps pulse dial with 39%/61% make/break. &P1 Set 10 pps pulse dial with 33%/67% make/break. &P2 Set 20 pps pulse dial with 39%/61% make/break.
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AT Command Reference Manual \Kn Controls break handling during three states: When modem receives a break from the DTE: \K0,2,4 Enter on-line command mode, no break sent to the remote modem. \K1 Clear buffers and send break to remote modem. \K3 Send break to remote modem immediately. \K5 Send break to remote modem in sequence with transmitted data. When modem receives \B in on-line command state: \K0,1 Clear buffers and send break to remote modem. \K2,3 Send break to remote modem immediately. \K4,5 Send brea
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AT Command Reference Manual 8.3 MNP 10 COMMANDS -K0 -K1 -K2 -SEC=0 -SEC=1,[] Disable MNP 10 extended services. Enable MNP 10 extended services. Enable MNP 10 extended services detection only. Disable MNP10-EC. Enable MNP10-EC and set transmit level 0 to 30 (0 dBm to -30 dBm). 8.4 W-CLASS COMMANDS *B *D *NCn Display list of permanently blacklisted numbers. Display list of delayed numbers. Change country to one of eight in NVRAM. 8.
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AT Command Reference Manual 8.7 FAX CLASS 2 +FCLASS=n +FAA=n +FAXERR +FBOR +FBUF? +FCFR +FCLASS= +FCON +FCIG +FCIG: +FCR +FCR= +FCSI: +FDCC= +FDCS: +FDCS= +FDIS: +FDIS= +FDR +FDT= +FDTC: +FET: +FET=N +FHNG +FK +FLID= +FLPL +FMDL? +FMFR? +FPHCTO +FPOLL +FPTS: +FPTS= +FREV? +FSPL +FTSI: 8-6 Service class. Adaptive answer. Fax error value. Phase C data bit order. Buffer size (read only). Indicate confirmation to receive. Service class. Facsimile connection response. Set the polled station identification.
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AT Command Reference Manual 8.8 VOICE/AUDIO COMMANDS #BDR #CLS #MDL? #MFR? #REV? #SPK= #TL #VBQ? #VBS #VBT #VCI? #VGT #VLS #VRA #VRN #VRX #VSD #VSK #VSP #VSR #VSS #VTD #VTM #VTS #VTX Select baud rate (turn off autobaud). Select data, fax, or voice. Identify model. Identify manufacturer. Identify revision level. Speakerphone setting. Audio output transmit level. Query buffer size. Bits per sample. Beep tone timer. Identify compression method. Set playback volume in the command state. Voice line select.
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AT Command Reference Manual 9. COMMON CONFIGURATION SETUP STRINGS This appendix describes setup strings to establish commonly used configurations. 1. Force V.42 bis data compression with LAP-M error correction. AT\N4%C2-K0 2. Force V.42 bis data compression with MNP error correction. AT\N5%C2 3. Force MNP 5 data compression with MNP error correction. AT\N5%C1 Note: With the setup strings in examples 1-3, if the remote is unable to negotiate the desire rate mode, the modem will disconnect and respond w
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INSIDE BACK COVER NOTES
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REGIONAL SALES OFFICES Headquarters Rockwell Semiconductor Systems 4311 Jamboree Road, P.O. Box C Newport Beach, CA 92658-8902 Phone: (714) 221-4600 Fax: (714) 221-6375 European Headquarters Rockwell Semiconductor Systems S.A.R.L. Les Taissounieres B1 Route des Dolines Sophia Antipolis Cedex 06905 Valbonne France Phone: (33) 93 00 33 35 Fax: (33) 93 00 33 03 For more information: Call 1-800-854-8099 International information: Call 1-714-833-6996 URL Address: http://www.nb.rockwell.