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There are, at this time, three standards for 56K modems; v.90 (the
ITU ratified standard), K56Flex and X2 (the older and incompatible
standards which have largely been replaced).
geeksnet currently supports v.90 and x2 on its
3Com/USR TotalControl racks.
All 56K technologies require a very clean phone
line, with no more than a single analog digital conversion in the
connection. Several national magazines have reviewed and field tested
56K modems, and estimated that only 80% of locations meet these
requirements. Your actual connection speed with a 56K modem is not
guaranteed or even likely to be 56kbps. Actual connection speeds
range from 26.4 to 53.3 kbps, with an average of 42,666 kbps, regardless
of your computer's speed or OS.
Informational Sites
Testing your line for 56K compatibility
You can test your phone line. This test works equally well for all 56K technologies,
and does not require that you already have a 56K modem (but does
require that you have at least a 28.8 modem).
LineTest has three requirements:
- You must reside in the United States of America
or Canada
- Any manufacturer's V.34 modem, installed and
connected to a phone line
- Any terminal application, such as Windows 95/98
HyperTerminal, RapidComm, QuickLink II or MacComCenter
For complete instructions, see 56K
Technology LineTest |
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