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Table 3-1. AT Commands by Function
Topic:
Dialing Action
Dial Modifiers
Phone Number
Memory
Configuration
Storage & Recall
Modem Responses
(Result Codes)
Online Connection
Command:
Description:
D
Dial
A:
Continuous redial
H
On-hook/off-hook
P
Pulse dialing
T
Tone dialing
W
Wait for new dial tone
R
Reverse originate/answer mode
,
Dialing pause
:
Continuous redial
;
Return to command mode after dialing
!
Flash on-hook
@
Quiet answer
$
Call card tone detect
D...N
Store a phone number
N
Dial a stored number
N...N
Number linking
L
List stored telephone numbers
&W
Store configuration
&F
Load default configuration
Z
Reset modem
E
Echo command mode characters
Q
Result codes: enable/disable
&Q
Result codes: Multi-Tech or standard
V
Result codes: verbose/terse
X
Result codes and call progress
&A
Answerback
#A
Auto speed detection
B
Answer tone
%DC
Command mode control
&CD
Cleardown at disconnect
>DT
DTMF detection
#F
Fallback modes when online
&G
Guard tones
*H
Busy-Out After Disconnect
&P
Pulse dial ratios
&RD
Square wave ring detect
$T
Calling tones
#T
Trellis-coded modulation
Y
Long space disconnect
Chapter 3 - AT Commands
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