AT&T 7400B Plus User Manual page 51

DEFINITY Communications System
7400B Plus Data Module
User´s Guide
Dialing Delay
Dialing Pause
Sample Command Line
To ensure that dialing does not begin before dial tone is received,
dialing a voice call will be delayed by the time stored in the S6
register (Wait Time Before Blind Dialing register) and can be set to
a maximum value of 255 seconds. The factory setting of 2 seconds
for S6 is adequate for most calls and should not be changed.
A pause for second dial tone is normally required for calls outside
the PBX. This can be provided by including a comma between the
outside line prefix (for example, 9) and the first digit of the
telephone number to be dialed. The comma instructs the 7400B
Plus, after dialing the prefix number, to pause a fixed time before
dialing the first digit of the telephone number. The pause time is
stored in the S8 register (Duration of Delay For Comma Dial
Modifier) and can be set for any value up to a maximum of 255
seconds. The factory setting of 2 seconds is adequate for most
applications and it should not be changed. If added delay is
required, additional commas can be added to the number.
This section presents a few sample AT command lines for voice
dialing, along with explanations of the results they will produce.
EXAMPLE 1: Dialing a voice call.
atd p 9,1 9085551212 (
OK
In the first line of this example,
at is the required command prefix,
d is the dial command,
p is the dial modifier required to initiate a voice call,
9 represents the access code required to dial a number
outside your PBX domain,
, (comma) is the dial modifier pause required for a second
dial tone,
1 represents the code required to dial a number outside
your area code,
and the remainder of the line is the telephone number.
CHAPTER 3: CONFIGURATION AND OPERATION
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