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Modem Response Codes
Numeric Verbal Meaning
0 OK Command executed
1 CONNECT Connection established
2 RING Ringing signal detected
3 NO CARRIER Carrier lost or not detected
4 ERROR Command error, command longer than
80characters or timeout
5 CONNECT 1200 Connection at 1200 or 1200/75 bps
6 NO DIALTONE Dial tone not detected on line
7 BUSY Number dialed was engaged
8 NO ANSWER Quiet answer not detected
10 CONNECT 2400 Connection at 2400 bps
11 CONNECT 4800 Connection at 4800 bps
12 CONNECT 9600 Connection at 9600 bps
13 RINGING Dialed number is ringing
20 CONNECT/REL Error corrected connection at 300 bps
22 CONNECT 1200/REL Error corrected connection at 1200 bps
23 CONNECT 2400/REL Error corrected connection at 2400 bps
24 CONNECT 4800/REL Error corrected connection at 4800 bps
25 CONNECT 9600/REL Error corrected connection at 9600 bps
26 CONNECT 12000/REL Error corrected connection at 12,000 bps
27 CONNECT 14400/REL Error corrected connection at 14,400 bps
28 CONNECT 7200/REL Error corrected connection at 7200 bps
30 CONNECT 12000 Connection at 12,000 bps
31 CONNECT 14400 Connection at 14,400 bps
32 CONNECT 7200 Connection at 7200 bps
33 CONNECT 16800 Connection at 16,800 bps
34 CONNECT 19200 Connection at 19200 bps
35 CONNECT 21600 Connection at 21,600 bps
36 CONNECT 24000 Connection at 24,000 bps
37 CONNECT 26400 Connection at 26,400 bps
38 CONNECT 28800 Connection at 28,800 bps
95 CONNECT 31200 Connection at 31,200 bps
97 CONNECT 33600 Connection at 33,600 bps
39 CONNECT 38400 Connection at 38,400 bps
40 CONNECT 57600 Connection at 57,600 bps
43 CONNECT 16800/REL Error corrected connection at 16,800 bps
44 CONNECT 19200/REL Error corrected connection at 19,200 bps
45 CONNECT 21600/REL Error corrected connection at 21,600 bps
46 CONNECT 24000/REL Error corrected connection at 24,000 bps
47 CONNECT 26400/REL Error corrected connection at 26,400 bps
48 CONNECT 28800/REL Error corrected connection at 28,800 bps
96 CONNECT 31200/REL Error Corrected connection at 31,200 bps
98 CONENCT 33600/REL Error Corrected connection at 33,600 bps
49 CONNECT 38400/REL Error corrected connection at 38,400 bps
50 CONNECT 57600/REL Error corrected connection at 57,600 bps
60 CONNECT 76800 Connection at 76,800 bps
61 CONNECT 96000 Connection at 96,000 bps
62 CONNECT 115200 Connection at 115,200 bps
63 CONNECT 230400 Connection at 230,400 bps
70 CONNECT 76800/REL Error corrected connection at 76,800 bps
71 CONNECT 96000/REL Error corrected connection at 96,000 bps
72 CONNECT 115200/REL Error corrected connection at 115,200 bps
73 CONNECT 230400/REL Error corrected connection at 230,400 bps
165 CONNECT 32000/REL Error corrected connection at 32,000 bps
166 CONNECT 34000/REL Error corrected connection at 34,000 bps