3Com 3CP5610A - U.S. Robotics 56K V90 PCI Performance Pro Faxmodem..., User Manual

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46 C
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ESOU RCES
Office Users Possible solution:
You may have plugged your modem's phone cord into a digital line.
Contact your phone system administrator if you are unsure whether or
not your phone line is digital.
If your phone system requires dialing “9” to access an outside line, be
sure to add “9” before the number you are dialing.
Voice Mail Users Possible solution:
If you have voice mail provided by your local phone company, your dial
tone may be altered when messages are waiting. Retrieve your voice mail
to restore your normal dial tone.
My modem sounds
like it's trying to
connect to another
modem but fails.
Possible solution:
You may have a poor connection. All calls are routed differently, so try
placing the call again.
My modem isn't
achieving a 56K
Internet connection.
Possible solution:
Note: U.S. Robotics 56K modems are capable of receiving downloads at
up to 56 Kbps and sending at 31.2 Kbps. Actual download speeds you
experience may be lower due to varying line conditions. Maximum
download speeds in U.S. and Canada are limited to 53K, due to
regulatory limits on power output.
Our research has shown that the vast majority of telephone lines in North
America can and do support 56K Installation. The V.90 protocol allows
for connection speeds of up to 56K, but line conditions may affect the
actual speeds during a given connection. Due to unusual telephone line
configurations, some users will not be able to take full advantage of V.90
technology at this time. In order to achieve a V.90 connection, the
following must occur:
1 . The server you're dialing into must support and provide a digital V.90
signal. Your ISP can provide you with a list of dial-up connections and
information on what those connections currently support.
2 . The telephone line between your ISP and your modem must be
capable of supporting a 56K connection and contain only one