IBM 2193 - Manual (Page 192)

B-12 IBM Personal Computer User Guide
Modem response codes
The following table lists the basic codes that the modem sends to your computer in
response to the commands you type. They are called response codes.
Table 5: Basic Response codes
Digit code Word code Meaning
0 OK Command was carried out without error
1 Connect Connected at 300 bits per second (bps)
2 Ring Ringing signal detected
3 No carrier Carrier is lost or not heard
4 Error Error in the command line
Invalid command
Command line exceeds buffer
Invalid character format
6 No dial tone No dial tone during the time-out period
7 Busy The line being called is busy
8 No answer The line being called did not answer within the time-out
period
11 Connect xxxx Connected at 2400 bps
24 Delayed Dialing delayed
32 Blacklisted Number is blacklisted
33 Fax Fax connection
35 Data Data connection
+F4 +FC error Fax error