56K V.92 Data, Fax, and Voice Chipset

Table 3-4. Data Mode Command Descriptions (Continued)

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

D

none

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.

 

Programmer’s Guide

Intel Confidential

43

L

Redials last number.

 

 

 

 

Page 43
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Intel MD566X manual Dialing Digits