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technology at this time. In order to achieve a V.90 connection:
1.
The server you are dialing into must support and provide a digital V.90 sig-
nal. Your ISP can provide you with a list of dial-up connections and infor-
mation 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 analog-to-digital con-
version. The 56K signal from your ISP begins as a digital signal. Some-
where between the ISP and your modem, there will be a digital-to-analog
signal conversion so that your modem can receive the data. There must be
no more than one analog-to-digital signal conversion in the path from your
ISP to your modem. If more than one analog-to-digital conversion occurs,
your connection speeds will default to V.34+ (33.6 Kbps). There may also
be impairments on the local lines between your ISP and your modem.
These impairments can prevent or limit connection speeds. All telephone
calls are routed differently, so you should try making your 56K connection
several times. One way to test this is to dial into a long distance location.
Long distance lines are often much clearer than local lines. It is important
to note that telephone companies are constantly upgrading their systems.
Lines that do not support 56K today may support 56K in the near future.
3.
For a V.90 connection, your modem must be connecting to a V.90/56K
server. A pair of 56K modems will not connect to each other at V.90/56K
speeds.
Support Resources
If you have not fixed your problem after trying the suggestions in the
"Troubleshooting" section of this guide, you can receive additional help via one
of these convenient resources:
1.
Visit the U.S. Robotics Web site
Many of the most common difficulties users experience have been
addressed in the FAQ and Troubleshooting Web pages for your specific
product. Your product ID is USRxx3453. You may need to know this to
obtain information on the U.S. Robotics Web site. Go to:
http://www.usr.com/support
2.
Contact the U.S. Robotics Technical Support Department
Technical questions about U.S. Robotics modems can also be answered by
technical support specialists.
United
(888) 326-
States
6099
http://www.usr.com/emailsupport
9:00 A.M.– 5:00 P.M.
CST Monday – Fri-
day
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