User guide

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Appendix D - Command Modem Commands
Vo-1 Result Codes Word or Digit
The command modem can display its Result Codes
on your supervisory console. These codes can
appear either in word(“verbose”) or single digit
(“terse”) form. For example, if after dialing, no carrier
signal is detected, the result can be displayed either
as NO CARRIER or as the digit 3. The V command
is used to determine which method is used.
Entering ATV0 will cause the command modem to
display the Result Codes as digits, while ATV1 will
display them as words. If you do not select a
method, the factory default setting will cause the
command modem to use the verbose results.
The following shows the terse and verbose result
codes and a description of each code.
Terse Verbose Description
0 OK Your command was executed without errors.
1 CONNECT A carrier signal has been detected 300 bps.
2 RING A ring signal has been detected from an
incoming call.
3 No Carrier No Carrier signal has been detected, or the
carrier signal was lost.
4 ERROR An error is present in your command
sequence, e.g. invalid characters or too
many characters.
5 CONNECT A carrier signal has been 1200 detected at
1200 bps.
10 Connect A carrier signal has been detected at 2400
bps.
13 DATA Command modem connected as data
modem during auto answer.