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Table E-1. AT Commands (Continued)
Command
Page
W
5-7
W1
W2
X
X1
X2
X3
X4
Y
5-24
Y1
Z
5-41
Z1
&C
5-18
&C1
&C2
&C3
&D
5-19
&D1
&D2
&D3
&F or &F1
5-40
&F2
&F3
&F4
&F5
&F6
* factory default
† cannot be executed from remote configuration mode
S-Reg
Negotiation display disabled *
Negotiation display enabled
Displays DCE link rate
S22
CONNECT (code 1), for all speeds, no dial
tone or busy signal detection
Appropriate connect codes for rate, no dial
tone detection
Wait for dial tone (appropriate
connect codes)
Detect busy signal (appropriate
connect codes)
Wait for dial tone, detect busy signal (appro-
priate connect codes) *
S21
Long space disconnect disabled
Long space disconnect enabled *
Reset to user option set #1
Reset to user option set #2
S21
DCD always on *
DCD on while carrier is present
DCD off 5 seconds after disconnect
DCD follows remote RTS
S21
DTR ignored *
DTR recalls command mode
DTR disconnects
DTR disconnects and resets modem to stored
configuration
Restore factory configuration 1 *
Restore factory configuration 2
Restore factory configuration 3
Restore factory configuration 4
Restore factory configuration 5
Restore factory configuration 6
V.3400
Command Index and Defaults
Description
†
†
†
†
†
†
†
†
E-3
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