3Com 005699-00 -, Руководство пользователя, Страница: 23 / 101

T
ROUBLESHOOTING AND
H
ELP
R
ESOURCES
6-2
•
You might have a bad phone cord connection to your modem. The phone cord should be
plugged into the TELCO jack on the modem and the wall phone jack. The phone cord
should be no longer than 12 feet in length. Use the phone cord included in your 3Com
box, if possible.
•
You may have plugged your modem’s phone cord into a digital line. Plugging your
modem’s phone cord into a digital phone line can damage the modem. Call your phone
company if you are unsure whether or not your phone line is digital.
•
You may have devices between the modem and the phone jack. There should be no line
splitters, fax machines, or other devices between the modem and the wall jack.
•
If you have a Macintosh modem, make sure that your DIP switches are set at 1, 3, 5, and
8 in the down (or on) position. In addition, &D0 should be in your initialization string.
The modem is able to dial out and attempts to connect, but fails
to connect to your ISP or Remote Server.
Possible Solutions:
•
You may have a poor line connection. Try placing the call again. The phone company
routes calls differently each time. To verify a valid phone connection, enter RapidComm’s
Terminal mode and type
ATX3DT18472626000 (the 3Com BBS) or