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MT5634ZBA-USB User Guide
The Modem Disconnects While Online
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If you have Call Waiting on the same phone line as your modem, it can 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 automatically disable Call Waiting by including the disabling code in the
modem’s dial prefix (e.g., ATDT*70,—note the comma, which inserts a pause before
the number is dialed). To change the dial prefix in Windows 98 HyperTerminal, select
Call from the Call menu, click Dialing Properties, check This location has Call
Waiting, and select the correct code for your phone service.
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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 especially for the modem.
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Check for loose connections between the modem and the computer and the
telephone jack.
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You might have had a poor connection because of line conditions or the problem
might have originated on the other end of the line. Try again.
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If you were online with a BBS or an online service like CompuServe, it might have
hung up on you because of lack of activity on your part or because you exceeded
your time limit for the day. Try again.
The Modem Cannot Connect When Answering
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Autoanswer might be disabled. Turn on autoanswer in your data communications
program or send the command ATS0=1 (ATS0=2 if you have Caller ID service) to
your modem in terminal mode.
The Modem Doesn’t Work with Caller ID
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Caller ID information is transmitted between the first and second rings, so if
autoanswer is turned off (S0=0) or if the modem is set to answer after only one ring
(S0=1), the modem will not receive Caller ID information. Check your initialization
string, and if necessary change it to set the modem to answer after the second ring
(S0=2).
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Make sure that you have Caller ID service from your telephone company.
Fax and Data Software Can’t Run at the Same Time
Communications devices can be accessed by only one application at a time. In Windows
98, you can have data and fax communication applications open at the same time, but
they cannot use the same modem at the same time.