Black Box 3600 Tone Dialing T, Pulse Dialing P, Insert Long Pause, Wait for Second Dial Tone W

AT Commands

Dial modifiers are as follows.

Command	Operation
T	Tone dialing
P	Pulse dialing
,	Insert a long pause (2 sec or value in S8)
W	Wait for 2nd dial tone
!	Flash (1/2 sec)
R	Switch to answer mode after dialing
;	Return to command mode after dialing
@	Wait for silence
S	Dial stored command line or number

Tone Dialing T

To tone dial a number sequence, insert a T in the dial sequence.

AT D T 323-1111

In this example, the modem tone dials the telephone number. The dialing method selected remains in effect until changed.

Pulse Dialing P

To pulse dial a number sequence, insert a P in the dial sequence.

AT D P 554-9902

Insert Long Pause ,

To insert a long pause in the dialing sequence, use a comma. This inserts a 2 second delay (or the value in register S8).

AT D P 9, 1-800-554-1000

Here the modem pulse dials a 9, pauses for the telephone system to switch to an outside line, then dials the phone number. Comma pauses may be inserted consecutively if desired.

Wait for Second Dial Tone W

To wait for second dial tone insert a W in the dialing sequence.

AT D 9 W 323-8000

Instead of using a comma pause for an outside line, wait up to 30 seconds (time specified by S7) for a second dial tone.

5-14 Modem 3600