IBM Aptiva, Handbook

Page: 187 / 202

Modem return codes 173
Modem return codes
The following table lists some codes that the modem sends to your computer in response to the commands you type.
They are called return codes. Not all of the return codes are listed here.
Table 14: Return 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
5 Connect 1200 Connected at 1200 bps
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
10 Connect 2400 Connected at 2400 bps
WORD FORM Preceded and terminated by CR LF