Owner`s manual

36
MT3400ZLX Owner’s Manual
The Modem Does Not Dial a Phone Number
After Execution of AT Dial Command
C: If you are using touch tone dialing on a phone
line that requires pulse dialing, then it may not
work.
S: Use ATDT in place of ATDP .
Communications Software Dials, but Fails
C: Make sure the software dialing prefix is ATDT .
C: Make sure the software and modem are set to
the same COMx port.
C: The modem may not have hung up the phone
line since the last call.
S: Change to Command mode and type ATH then
press Enter.
The Modem Connects with Some Modems, but
Not Others
C : The remote modem may not support data
compression or error correction, which might
cause it to take too long to negotiate a link.
S: You might try changing the way the modem
negotiates by using the AT&Qn , ATNn , and
ATS37=n commands. It might be best to start
with AT&Q0N1 .
When Dialing Another Modem, You Receive a
‘CONNECT’ Response, but Nothing Else
C: The remote modem may be waiting for you to
type a command.
S: Try to log on to the remote site (press Enter).
S: Type an AT command, then press Enter.
The Modem Speaker Does Not Make Any Sound
When Connecting to Another Modem
C: The software may have the speaker disabled.
S: Change the setting in your software or use the
ATMn command to turn the speaker on.