U.S.Robotics USR5630B Mode D'emploi page 13

your modem. These impairments can prevent or limit
V.90/V.92 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.
•
Your modem must be connecting to a V.90/V.92 server. A pair
of 56K modems will not connect to each other at 56K speeds.
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