5 Troubleshooting
25
MultiModemZPX User Guide
•
If the modem reports
BUSY, the other number may be busy. Try again later. BUSY also may
indicate that
9
was not added to the phone number (if required to dial
9 for an outside line).
If you are required to dial
9
to get an outside line, the easiest way to dial it automatically using
legacy software is to include it in the modem’s dial prefix, e.g.,
ATDT9,
(the comma inserts a
pause before the number is dialed). If you have set up your connection through Dial-Up
Networking or another communications program, find the dialing configuration dialog box that
allows you to add a dial prefix. Enter
9 as the prefix when dialing.
For example, in Windows 95/98, select
Start|Settings|Control Panel
, and then
Modems
.
In the
Modems Properties
sheet, select the appropriate modem model (e.g., Multi-Tech
MT5634ZPX-V92), click
Dialing Properties
and type
9
in the local and long distance box-
es in the
How I dial from this location box.
•
If the modem reports
NO ANSWER, the other system has failed to answer, or you may have
dialed a wrong number. Check the number.
•
If the modem reports
NO CARRIER, the phone was answered at the other end, but no modem
connection was made. You may have dialed an incorrect number and a person answered
instead of a computer. A
NO CARRIER message may also indicate the modem you are calling
is turned off or the software on the receiving end is faulty or incorrectly configured. Check the
number and try again or try calling another system to make sure your modem is working. You
may also try calling the modem’s phone number from your telephone. If you hear harsh
sounds, a modem is answering the call. If the modem is answering, the modems may be
having problems negotiating due to modem incompatibilities or line noise. Try the call again
connecting at a lower speed by setting register S37 to a lower rate (e.g., by typing
ATS37=11
in the terminal window and pressing
Enter
).
The modem disconnects while online
•
If you have call waiting on the same phone line as your modem, it may interrupt your
connection when someone tries to call you. If you have call waiting, disable it before each call.
In most telephone areas in North America, you can disable call waiting by preceding the
telephone number with
*70
(check with your local telephone company).
You can disable call waiting automatically by including the disabling code in the modem’s dial
prefix (e.g.,
ATDT*70
,—note the comma, which inserts a pause before the telephone number
is dialed). For example, in Windows 95/98 software, select
Start | Settings | Control Panel
,
and then
Modems
. In the
Modems Properties
sheet,
select
Multi-Tech MT5634ZPX-V92,
click
Dialing Properties
. Check
This location has call waiting and select the correct code for
your phone service.
Note: *70
is used only in the United States.
•
If you have extension phones on the same line as your modem, you or someone else can
interrupt the connection by picking up another phone. If this is a frequent problem, disconnect
the extension phones before using the modem or install another phone line for the modem
only.
•
Check for loose connections between the modem and the telephone jack.
•
You may have a poor connection because of line conditions, or the problem may have
originated on the other end of the line. Try again.
