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Appendix D - AT Command Summary
Appendix D - Command Summary
Command Values Description
AT Attention Code that precedes most command strings
except A/, A: and Escape Codes.
RETURN Pressing RETURN key executes most commands.
$ This symbol placed in dialing string enables the
modem to detect AT&T's "call card" tones for
accessing user's calling card to originate an on-line
connection.
A Answer call, even if no ring present. Repeat last
command. (Do not precede this command with AT.
Do not hit RETURN to execute.)
***A: Continuous redial (10 redials in DOC units) of last
number until answered. (Not used Internationally.)
$An n = 0 or 1 * $A0 discards data during auto-reliable time period.
$A1 buffers data during auto-reliable time period.
#An n = 0 thru 3 2834 Series:
* #A0 selects initial handshake at:33,600 to 31,200 to
28,800 to 24000 to 21,600 to 19,200 to 16,800 to
14,400 to 12,000 to 9600 to 4800 to 2400 to 1200 to
300 bps.
#A1 selects initial handshake at 33,600 bps only.
#A2 selects initial handshake at 33,600 to 31,200 to
28,800 to 24000 to 21600 to 19,200 to 16,800
19,200 to 14,400 to 9600 to 4800 bps.
#A3 selects initial handshake at 2400 to 1200 to 300
bps.
1932 Series:
* #A0 selects initial handshake at: 19,200 to 16,800 to
14,400 to 12,000 to 9600 to 4800 to 2400 to 1200 to
300 bps.
#A1 selects initial handshake at 19,200 bps only.
#A2 selects initial handshake at 19,200 to 16,800 to
14,400 to 9600 to 4800 bps.
#A3 selects initial handshake at 2400 to 1200 to 300
bps.
1432 Series:
* #A0 selects initial handshake at: 14,400 to 12,000 to
9600 to 4800 to 2400 to 1200 to 300 bps.
#A1 selects initial handshake at 14,400 bps only.
#A2 selects initial handshake at 14,400 to 9600 to
4800 bps.
#A3 selects initial handshake at 2400 to 1200 to 300
bps.
* Factory Default Setting
*** Not applicable in BLK models