IBM PCI Data/Fax Modem, User Manual

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Command Function
@ wait for five seconds of silence
! flash
; return to Command Mode after dialing
DS=n Dial one of the four telephone numbers (n=0-3) stored in the
modem non-volatile memory.
E_ E0 Commands are not echoed
E1 Commands are echoed
+++ Escape Characters - Switch from Data Mode to Command Mode
(T.I.E.S. Command)
H_ H0 Force modem on-hook (hang up)
H1 Force modem off-hook (make busy)
Note: H1 command is not supported for Italy
I_ I0 Display product-identification code
I1 Factory ROM checksum test
I2 Internal memory test
I3 Firmware ID
I4 Reserved ID
L_ L0 Low speaker volume
L1 Low speaker volume
L2 Medium speaker volume
L3 High speaker volume
M_ M0 Internal speaker off
M1 Internal speaker on until carrier detected
M2 Internal speaker always on
M3 Internal speaker on until carrier detected and off while dialing
N_
N0 Disable Autoscan mode
N1 Enable Autoscan mode
O_
O0 Return to Data Mode
O1 Return to Data Mode and initiate an equalizer retrain
P Set Pulse dial as default
Q_ Q0 Modem sends responses
Q1 Modem does not send responses
Sr? Read and display value in register r.
Sr=n Set register r to value n (n = 0-255).
T Set Tone Dial as default
A-2
V.90 PCI Data/Fax Modem: User’s Guide