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2Modem/DSU Commands
2-416800-A2-GB31-20 January 1997
Some of these options are dial control characters which insert pauses and other special characters
within the telephone number. The following list describes these options:
* or # Special characters in PBX dialing.
(), space, or - Improve readability (ignored by the modem).
P, p, or ∧\
Change the current dialing method to pulse dialing service.
t, T, or % Change the current dialing method to touch-tone dialing service.
+ Wait up to 30 seconds for secondary dial tone (AT&T protocol).
w or W Wait up to 30 seconds for secondary dial tone (Hayes protocol).
, 2-second pause.
/ Pause character.
\v Delimiter separating telephone number and callback directory pointer
for use with call-back security.
; Reserved for future use.
k Placed at the end of a dial string. Temporarily changes half-duplex
emulation option.
j Placed at the end of a dial string. Temporarily changes sync/async
option.
– Reserved for future use.
For example, you can enter 9+12015551212t. The plus symbol (+) represents a 30-second pause to
wait for a secondary dial tone. The t indicates that touch-tone dialing service is being used.
For 3800 Series devices, enter a telephone number using the following characters:
0–9 Number
* DTMF number *
# DTMF number #
A DTMF number a
B DTMF number b
C DTMF number c
D DTMN number d
T Tone dialing
P Pulse dialing
W or + Wait for dial tone
R Reverse dial
@ Quiet answer
! Hook flash
, Pause
Disconnect immediately (for use in calling pagers)
; Return to command mode after dialing
space or - Separator for readability
0 Separator for readability