I don't think so. Of course, I may be wrong. A mobile phone is constrained by technical limitations, that are built-in the cellular network you are using. Current GSM networks, due to their architecture, cannot allow you to have more than 9.6 Kbps of bandwidth -- this has nothing to do with the type of transmission (digital or audio) but with the speed of the GSM protocol itself. While I am not a specialist of other (analog) cellular systems, I believe they are even worse in this respect, since they do not have the error checking and digital transmission GSM offers. More than that, but a "56" Kbps transmission depends on having digital links (read: fiber optics) between your modem to the other one. In short, it's an ugly kludge that takes advantage of some possibilities of the telephone digital switiching system to increase the available bandwidth. In some areas of the world, you'll never ever get 56 Kbps, since the phone system is almost 100% copper wire and analog switches. And even if your telephone system is all fiber optics and digital switches, you'll never *exactly* get 56 Kbps: the best I can have is about 50.xxx Kbps, and I am in an area which is almost pure digital & fiber optics -- to the point that getting a DSL line is a matter of days, not weeks. On GSM, again, you bump into the limitations of the GSM standard itself: transmissions are limited to 9.6 Kbps -- period. Getting an audio connection to go faster than this seems very dubious. Disclaimer: of course, everything I say here could be completely wrong. In that case, I would be very, very, very interested in getting one of these cards... Email and web access anywhere... Oh, yes! <grin> On Mon, 17 Dec 2001 04:26:42 -0500 (EST) Charles McCathieNevile <charles@w3.org> wrote: > Actually I believe there are cards that will let you use a mobile phone as an > audio connection - in principle capable of giving you 56k... > > chaals > /-------------------------------------\ | Gil Andre -- Technical Writer | |Knox Software: http://www.arkeia.com | | email: gandre@arkeia.com | \-------------------------------------/