cellular net access?

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with cdma you don't need a modem as the phone acts as the modem itself.

At 11:11 AM 12/18/01 -0600, you wrote:
>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
>>
>>
>
>
>
>_______________________________________________
>
>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 






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