Black Box MD1640A Modem User Manual


 
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SERIES II INTELLIGENT DATA/FAX MODEMS
The Modem Disconnects While On-line
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, you can disable call waiting by preceding the telephone num-
ber 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 Terminal, select Settings,
Modem Commands. To change it in Windows 95 HyperTerminal,
select Call, Connect from the menu bar, click Dialing Properties,
check this location has Call Waiting, and select the correct code for
your phone service.
If you have extension phones on the same line as your modem, you
or someone else can interrupt the connection by picking up anoth-
er phone. If this is a frequent problem, disconnect the extension
phones before using the modem, or install another phone line es-
pecially for the modem.
Check for loose connections between the modem and the
computer, the telephone jack, and AC power.
You may have had a poor connection because of line conditions or
the problem may have originated on the other end of the line. Try
again.
If you were on-line with a BBS, it may 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
Auto-answer may be disabled. Turn on auto-answer in your data-
comm program or send the command ATS0=1 to your modem
in terminal mode.