Who would have thought something that looked some simple could be so complex. We've
gathered together resources to help you de-mystify the modem and your connection.
Still having problems or questions, contact us for assistance.
Where do I get information on v.90 upgrade?
We recommend you read the V.90 Upgrade FAQ
available on the internet.
What do you mean by analog modem?
An analog modem is what most people refer to as just "a modem".
However, we want to distinguish in this FAQ because digital modems
(terminal adapters) thru ISDN are capable of this 56K and greater
speeds already. In fact, terminal adapters are not "modems" at all.
The word "modem" is an acronym for MOdulator/DEModulator which
defines the process by which they work. A modem converts digital
computer signals into into sounds (MOdulation) and in turn are
transmitted via phone lines to another modem which in turn
converted back to the digital signals (DEModulation).
What is this new analog modem 56K technology?
This new technology allows 28.8/33.6 modems to download at 56Kbps.
Uploading speeds will remain same at 28.8/33.6Kbps. There are two
standards right now: U.S. Robotics X2 standard and Rockwell
Semiconductor's 56K FLEX. There is no current industry standard for
these similar technologies. The biggest difference between the two
standards are that USR's X2 will only upload data up to 28.8Kbps
while Rockwell's 56K FLEX will upload data up to 33.6Kbps. Another
difference is the Rockwell's 56K Flex seems to get a higher
download transfer rates than USR's X2 although neither have been
proven to truly get 56Kbps.
Does my analog modem support these technologies?
Check with your manufacturer for which (if any) 56K technology is will be using.
Check out these pages from Rockwell:
Where can I get more information on U.S. Robotics' X2 technology?
The best place to find information is to go directly to the source. Click
here to visit U.S. Robotics Web Page
Where can I get more information on both technologies?
Looking for a non-biased opinion, why don't you see what this
site has to say.