My laptop's modem, I believe has this feature for gsm, but not cdma, which is bad in the states, as gsm coverage isn't probably that great, and with my modem, I didn't get software to control such phones, but there's an adapter on the end of the cable that you plug a phone cord in to that in itself clicks off, probably for this use. At 03:20 PM 12/18/01 +1300, you wrote: >there are pcncia cards for laptops that are rated for both standard >landline dailup and cellular connections to certain phones, and they are >listed as being 56k modems, that may only be for andline useage as you say >gsm networks are limited to 9K6 data speed, but are seeminly trying to up >that with a new system, that I've heard isn't working well for them at the >moment, or that's what I've heard here in NZ anyway. > >cdma is a digital network, it stands for coded devisional multiple access, >or something along those lines, it is replacing an older analogue system >here in new zealand. > >At 10:43 AM 12/17/01 +0100, you wrote: >> >>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 | >>\-------------------------------------/ >> >> >> >>_______________________________________________ >> >>Blinux-list@redhat.com >>https://listman.redhat.com/mailman/listinfo/blinux-list >> >Dunedin, NZ > >Hm Ph: +64-03-4771633 >mobile Ph: +64-027-4849896 > >Email: > Blinky@earthlight.co.nz >Fogsi461@student.otago.ac.nz > > > > >_______________________________________________ > >Blinux-list@redhat.com >https://listman.redhat.com/mailman/listinfo/blinux-list > >