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56K Voice Faxmodem Internal - User’s Guide 35
PROBLEM: Both modems sound like they are exchange
carrier signals, but fail to establish a connection.
POSSIBLE SOLUTION
You may have a poor line connection. Place the call again. Calls are
routed differently each time.
POSSIBLE SOLUTION
Your phone jack may have been wired incorrectly. Contact your telephone
company. Ask them to make sure the tip and ring are on the inside pair of
wires.
PROBLEM: Your 56K modem cannot achieve a 56K Internet
connection.
POSSIBLE SOLUTION
This modem is capable of 56 Kbps downloads. However, the download
speeds you experience may be lower due to varying line conditions and
other factors. Uploads from users to server equipment travel at speeds up
to 31.2 Kbps. An analogue phone line compatible with the ITU V.90
standard or 3Com’s proprietary 56K technology, and an Internet provider
or corporate host site with the ITU V.90 standard or 3Com’s proprietary
56K technology are necessary for these high-speed downloads. Check
http://www.3com.com/56k for a list of ISPs that observe the 56K ITU
standard and/or offer 3Com’s proprietary 56K technology.
POSSIBLE SOLUTION
The phone lines in your area may not be 56K compatible. Call your phone
company to find out if your phone line is compatible with the ITU standard
for 56K and/or is compatible with 3Com’s proprietary 56K technology.
POSSIBLE SOLUTION
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.