Specifications

Table of Contents
Multi-Tech Systems, Inc. SocketModem MT5600SMI/MT5656SMI Reference Guide (S000306B) 3
Contents
Chapter 1 – AT Commands, S-Registers and Result Codes.................................................................... 4
Introduction................................................................................................................................................ 4
Escape Code Sequence – +++ ................................................................................................................. 4
Data Commands........................................................................................................................................ 5
Generic Modem Control Commands .....................................................................................................5
DTE-Modem Interface Commands.......................................................................................................... 11
Call Control Commands .......................................................................................................................... 16
Modulation Control Commands............................................................................................................... 26
Error Control Commands......................................................................................................................... 30
Data Compression Commands ............................................................................................................... 35
V.8/V.8bis Commands............................................................................................................................. 38
Diagnostic Commands ............................................................................................................................ 40
Example Modem Response and Usage ..............................................................................................44
Compatibility Commands......................................................................................................................... 45
Fast Connect Commands........................................................................................................................ 46
V.92 +P and –Q Commands ................................................................................................................... 47
S-Registers.............................................................................................................................................. 51
Result Codes ........................................................................................................................................... 59
Chapter 2 – Fax Class 1 Commands......................................................................................................... 62
Fax I/O Processing.................................................................................................................................. 62
DTE-to-Modem Transmit Data Stream................................................................................................62
Modem-to-DTE Receive Data Stream.................................................................................................62
Fax Mode Selection .............................................................................................................................63
Fax Origination.....................................................................................................................................63
Fax Answering .....................................................................................................................................63
Fax Control Transmission....................................................................................................................63
Fax Control Reception .........................................................................................................................64
Fax Data Transmission........................................................................................................................65
Fax Data Reception .............................................................................................................................65
Commands and Parameters ................................................................................................................... 66
Mode Entry Commands .......................................................................................................................66
Mode Commands.................................................................................................................................66
Service Class 1 Commands .................................................................................................................... 70
Examples................................................................................................................................................. 74
Chapter 3 – Fax Class 2 Commands......................................................................................................... 76
Command and Syntax Guidelines........................................................................................................... 77
Mode Entry Commands .......................................................................................................................77
DTE Commands ..................................................................................................................................77
Serial Port Speed and Flow Control ....................................................................................................78
Auto Answer.........................................................................................................................................79
Identification of T.30 Options...............................................................................................................79
Session Status Reporting ....................................................................................................................79
Procedure Interrupt Negotiation...........................................................................................................79
Service Class 2 Identification and Selection ........................................................................................... 80
Service Class 2 Action Commands......................................................................................................... 81
Service Class 2 DCE Responses............................................................................................................ 88
Service Class 2 Parameters.................................................................................................................... 91
Example Sessions................................................................................................................................... 95
Chapter 4 – Voice Commands................................................................................................................... 97
Voice Commands Overview .................................................................................................................... 97
<DLE> Shielded Event Codes Sent to the DTE ..................................................................................98
<DLE> Shielded Codes Sent to the Modem (DCE).............................................................................99
Voice Configuration Commands............................................................................................................100
Basic Voice Commands ........................................................................................................................ 101
Index........................................................................................................................................................... 112