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AT Commands
Modem 3600 5-9
Response Number Codes / Messages
Response number codes, messages, and their meanings are listed in .
The connect rates are serial port rates (DTE), not DCE rates.
Code Message Meaning
0 OK Command received
1 CONNECT Connect at 300 bps while X1, X2,
X3, or X4 command in effect; all
rates while X command in effect
2 RING Ring detected
3 NO CARRIER Valid carrier not detected within
period specified by register S7, or
carrier lost for value of S10 or
more
4 ERROR Command not recognized or too
long
5 CONNECT 1200 Connection made at 1200 bps
6 NO DIAL TONE No dial tone detected for 5
seconds (X2 or X4 command in
effect)
7 BUSY Dialed number busy (X3 or X4
command in effect)
10 CONNECT 2400 DTE rate 2400 bps
11
,
15
CONNECT 4800 DTE rate 4800 bps
12
,
18
CONNECT 9600 DTE rate 9600 bps
20 CONNECT 300 DTE rate 300 bps
22 CONNECT 7200 DTE rate 7200 bps
23 CONNECT 12000 DTE rate 12000 bps
24 CONNECT 14400 DTE rate 14400 bps
25 CONNECT 16800 DTE rate 16800 bps
26 CONNECT 19200 DTE rate 19200 bps
27 CONNECT 21600 DTE rate 21600 bps
28 CONNECT 24000 DTE rate 24000 bps
29 CONNECT 26400 DTE rate 26400 bps
30 CONNECT 28800 DTE rate 28800 bps