Multitech MultiModem MT2834ZPW, Owner'S Manual

Page: 53 / 94

Chapter 6 - Solving Problems
53
The Modem Dials But Cannot Make a
Connection
There can be several reasons the MultiModemZPW fails to make a
connection. Possibilities include
• lack of a physical connection to the telephone line.
• a wrong dial tone.
• a busy signal.
• a wrong number.
• no modem at the other end.
• a faulty modem, computer, or software at the other end.
• incompatibility between modems.
You can narrow the list of possibilities by using extended result codes. If
you have disabled the modem’s extended result codes, re-enable them
by entering ATV1X4 in the terminal window and pressing ENTER.
When you dial again, the modem will report the call’s progress.
• If the modem reports NO DIALTONE, check that the modem’s
telephone line cable is connected to both the modem’s LINE jack
(not the PHONE jack) and the telephone wall jack. If the cable
looks secure, try replacing it. If that doesn’t work, the problem may
be in your building’s telephone installation. To test the building
installation, plug a telephone into your modem’s telephone wall jack
and listen for a dial tone. If you hear a dial tone, your modem may
be installed behind a company phone system (PBX) with an
internal dial tone that sounds different from the normal dial tone. In
that case, the modem may not recognize the dial tone and may
treat it as an error. Check your PBX manual to see if you can
change the internal dial tone; if you can’t, change your modem’s
initialization string to include
X3, which will cause the modem to
ignore dial tones. (Note, however, that X3 is not allowed in some
countries, such as France and Spain.)
• If the modem reports BUSY, the other number may be busy, in
which case you should try again later, or it may indicate that you
have failed to add a 9, prefix to the phone number if you must dial
9
for an outside line.