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MT5634 Modem; AT Command Set
Command: Ds Dial
Values: s = dial string (phone number and dial modifiers)
Default: none
Description: Dial telephone number
s, where s may up to 40 characters long
and include the 0–9, *, #, , B, C, and D characters, and the L, P, T,
V, W, S, comma (,), semicolon (;), !, @, ^ and $ dial string
modifiers.
Dial string modifiers:
L Redial last number. (Must be placed immediately
after ATD
.)
P Pulse-dial following numbers in command.
T Tone-dial following numbers in command (default).
V Switch to speakerphone mode and dial the following
number. Use ATH
command to hang up.
W Wait for a new dial tone before continuing to dial.
(X2, X4, X5, X6, or X7 must be selected.)
, Pause during dialing for time set in register S8.
; Return to command mode after dialing. (Place at end
of dial string.)
! Hook flash. Causes the modem to go on-hook for
one-half second, then off-hook again.
@ Wait for quiet answer. Causes modem to wait for a
ringback, then 5 seconds of silence, before
processing next part of command. If silence is not
detected, the modem returns a NO ANSWER code.
^ Disable data calling tone transmission.
$ Detect AT&T call card “bong” tone. The character should
follow the phone number and precede the user’s call card
number: ATDT1028806127853500$123456789
Command: DS=y Dial Stored Telephone Number
Values: y = 0–2 (0–1 for SMI-Parallel {internal})
Default: none
Description: Dial a number previously stored in directory number
y by the
&Zy=x command. Example: ATDS=2
Command: En Echo Command Mode Characters
Values: n = 0 or 1
Default: 1
Description: E0 Do not echo keyboard input to the terminal.
E1 Do echo keyboard input to the terminal.
Command: Fn Echo Online Data Characters
Values: n = 1
Default: 1
F0 Enable online data character echo. (Not supported.)
F1 Disable online data character echo (included for
backward compatibility with some software).