USRobotics 5671 Installationsanleitung Seite 17

• The telephone line between your ISP and your modem must be capable of supporting
a 56K connection and contain only one digital-to-analogue conversion. The 56K signal
from your ISP begins as a digital signal. Somewhere between the ISP and your modem,
there will be a digital-to-analogue signal conversion so that your modem can receive
the data. There must be no more than one digital-to-analogue signal conversion in the
path from your ISP to your modem. If more than one analogue-to-digital conversion
occurs, your connect speeds will default to V.34 (33.6 Kbps). There may also be impair-
ments on the local lines between your ISP and your modem. These impairments can
prevent or limit V.92 or V.90 connection speeds. All telephone calls are routed differ-
ently, so you should try making your 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.
• Your modem must be connecting to a V.92 or V.90 server. A pair of 56K modems will
not connect to each other at 56K speeds.
Support Resources
If you have not fixed your problem after trying the suggestions in the "Troubleshooting" sec-
tion, you can receive additional help via one of these convenient resources:
World Wide Web
The USRobotics Web site contains useful product information, documents, downloads, and
updated FAQs.
http://www.usr.com/support
Are You Still Having Problems?
1. Contact the dealer who sold you the modem.
The dealer may be able to troubleshoot the problem over the phone or may request
that you bring the modem back to the store for service.
2. Contact the USRobotics Technical Support Department.
Questions about USRobotics modems can be answered by technical support special-
ists.
Country Webmail
Austria www.usr.com/emailsupport/de 07 110 900 116
Belgium (Flemish) www.usr.com/emailsupport/bn +32 (0)70 233 545 9:00 A.M.–17:00 P.M., M–F
www.usr.com/emailsupport/be +32 (0)70 233 546 9:00 A.M.–17:00 P.M., M–F
Belgium (French)
Czech Republic www.usr.com/emailsupport/cz
Denmark www.usr.com/emailsupport/ea +45 7010 4030
Finland www.usr.com/emailsupport/ea +358 98 171 0015
Voice Support Hours
9:00 A.M.–17:00 P.M., M–F
9:00 A.M.–17:00 P.M., M–F
10:00 A.M.–18:00 P.M., M–F
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