Quick Start Manual

Reference Guide for the Model XM128 ISDN Digital Modem
AT Command Set Reference C-3
Bnn Select ISDN Teleservice. B must be followed by two digits.
See also S-registers 82 and 102. For a description of Extended S-registers,
refer to Table D-4 on page D-5 in Appendix D, “Status Registers and Result
Codes."
B00 X.75 Transparent
B01 X.75 T.70
B04 BTX (Data X-J)
B10 V.110 user rate follows DTE speed (async) or V.110 user rate determined by
in-band negotiation (sync)
B13 V.110 user rate = 2400 bps. See also S-register 117. For a description of
Extended S-registers, refer to Table D-4 on page D-5 in Appendix D, “Status
Registers and Result Codes."
B14 V.110 user rate = 4800 bps
B15 V.110 user rate = 9600 bps
B16 V.110 user rate = 14400 bps
B17 V.110 user rate = 19200 bps
B18 V.110 user rate = 384000 bps (sync only)
B19 V.110 user rate = 576000 bps (sync only)
B20 V.120
B40 PPP async to sync conversion
B41 SLIP async to sync conversion
CEn Call bumping for MPPP and CCB. See also S-register 85.0. For a description
of Extended S-registers, refer to Table D-4 on page D-5 in Appendix D, “Status
Registers and Result Codes."
CE0 Disable call bumping function.
CE1 Enable call bumping function.
CH? Display the accumulated charging unit of the last call.
CI<prefix> Prefix number string to be added to the Calling-party-number before indicating
to the DTE when the type of number denotes international.
CLn n=0-2048 Maximum size of user data in a packet (number of octets).
CL? Inquire current setting of ATCLn.
CN<prefix> Prefix number string to be added to the calling party number before indicating
to the DTE when the type of number denotes national.
Table C-1. Basic AT command set (continued)
Command Options Function and description