D/I Mux III User’s Manual Appendix G. Modem Interfaces
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Smartmodem 2400/2400B Command Set
The Smartmodem 2400 and the Smartmodem 2400B command sets are super sets of the Smartmodem
1200 command set with some exceptions, and are listed and described in Table I-4. The following
commands are no longer available:
• C0 : Preset to C1
• F0 : Preset to F1
• H2 : No longer available
Table H-4. Smartmodem 2400/2400B Command Set
Command Description
B0
B1
Select CCITT V.22 or V.22bis as communication standard.
Select Bell 212A communication standard.
M3
Speaker on until carrier is detected, except during dialing.
O0
Go to on-line state, and initiate equalizer retrain.
X0
X1
X2
X3
X4
Enable features represented by result codes 0-4.
Enable features represented by result codes 0-5, 10.
Enable features represented by result codes 0-6, 10.
Enable features represented by result codes 0-5, 7, 10.
Enable features represented by result codes 0-7, 10.
(See section below for description of result codes.)
Z0
Z1
Reset modem, and recall user profile 0.
Reset modem, and recall user profile 1.
S=n
These commands accommodate the ability to store telephone
numbers in an onboard dialing directory.
Dial number stored in location "n".