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
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