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56K V.92 Data, Fax, and Voice Chipset
Programmer’s Guide Intel Confidential 43
D none
Dial Command: This command causes the modem to immediately go off-
hook as an originating modem and dial a telephone number with correspond-
ing dial modifiers. Dial modifiers are parameters that define how the modem
should dial the telephone number.
Dial Modifiers
0–9 Dialing Digits
A, B, C, Tone Dial Characters
D, *, #
P Pulse Dial—configures the modem to use pulse dialing to
dial a telephone number.
R Reverse Originate Mode—places the modem in answer
mode. This modifier should be the last character in the dial-
ing string (for example, ATDT 12345678R). After dialing the
telephone number, the modem goes into data modem an-
swer mode instead of originate mode.
S = n Dial NVRAM Telephone Number—causes the modem to dial
a telephone number previously stored in the NVRAM with
the AT&Zn=x command.
T Tone Dial—configures the modem to use DTMF tones to dial
a telephone number.
W Wait for Dial Tone—causes the modem to look for dial tone
for a specified amount of time. If dial tone or the amount of
time specified by the S-register, S6, times out, the modem
processes the next command in the dial string. If a busy sig-
nal is detected, the modem responds to the DTE with a busy
response code and then goes into off-line command mode.
, Pause—causes the modem to pause or delay implementing
the next parameter in the dial string by the time specified in
S-register S8.
! Flash Hook—causes the modem to go on-hook for 0.75 sec-
onds.
@ Wait for Quiet Answer—causes the modem to wait for spec-
ified amount of time (S-register S7) followed by 5 seconds of
silence before processing the next dial modifier.
; Return to Idle State—causes the modem to enter online
command mode without initiating a data modem handshake
(used for phone directory auto-dialers).
<space> - ( ) Ignored by Modem—these four characters are ignored by
the modem. Spaces also may be included in the dial string
to separate area codes and numbers.
L Redials last number.
Table 3-4. Data Mode Command Descriptions (Continued)