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APPENDIX A. AT COMMANDS
ACTIVE Professional External Modem User’s Manual
13
A-D DTMF digits A ,B,C and D. These digits may be prohibited in
some countries
* The "star" digit (tone dialling only)
# The "gate" digit (tone dialling only)
J Perform MNP 10 link negotiation at the highest supported
speed for this call (Optional)
K Enable power level adjustment during MNP 10 link
negotiation for this call (Optional)
L Dials the last dial string that was dialled
P Use pulse dialling
T Use DTMF dialling
R Reverse mode. Allow the modem to call an originate-only
modem by forcing the call into "answer mode". Must be
entered as the last character of the command string (optional).
! Cause the modem to go on-hook for a time defined by the
value in S29 and then off-hook.
@ Cause the modem to listen for 5 seconds of silence
W Wait up to the period of time specified in register S7 for dial
tone before dialling
, Pause for the value specified by register S8 during dial
; Return to Command State after dialling
^ Turn on calling tone
() Ignored, may be used to format the dial string
- Ignored, may be used to format the dial string
<space> Ignored, may be used to format the dial string
S=n Dial number previously stored in directory location n using
AT&Zn command
ATE * Command echo Default : 1
ATE0 Inhibits the echoing of commands
ATE1 Enables the echoing of commands
ATHn Switch-hook control Default : 0
ATH0 Cause the modem to go on-hook
ATH1 If modem is on-hook, modem goes off-hook, returns an OK
response, and waits for further commands
ATIn Identification
I0 Reports product code
I1 Reports pre-computed checksum from ROM
I2 Computes checksum and compares it with value stored in
ROM. Reports result as OK or ERROR.
I3 Reports firmware revision
I4 Reports OEM defined identifier string
I5 Reports Country Code parameter
I6 Reports firmware revision
I7 Reports modem data pump model