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| Subject: | Re: MobileLBSList: mobile network protocols |
| Date: |
05/04/2001 04:10:20 AM |
| From: |
robert.cayzer@my.andersen.com |
|
for the list
To: sfoo@apis.dhl.com
cc:
Date: 04-05-2001 04:47 PM
From: Robert Cayzer, Kuala Lumpur
Subject: Re: MobileLBSList: mobile network protocols
Hi,
D is Data
Nextel is the name of a company in US who provides a unique multi-bearer
service, similar to Tetra, which btw is another emerging mobile technology
PDC is for personal digital communication PDC-P is for PDC-Packet
GPRS is for GSM only, though there is a migration from some of US's TDMA
operators (ie: Verizon and AT&TW)
cheers,
rob.c.
To: Sunny@mviva.net
cc: mobilelbslist@wirelessdevnet.com (bcc: Robert Cayzer)
Date: 04-05-2001 04:55 PM
From: sfoo@apis.dhl.com
Subject: Re: MobileLBSList: mobile network protocols
hi all,
Appreciate it if anyone could tell me what is CSD, Nextel and PDC-P. Is CSD,
Circuit
Switched
D(?)
and PDC-P (Packet ....)?
Also does GPRS ride on the GSM network only?
thanks
sofia
Sandeep Hundal wrote:
> well japan has the wap protocol and the i-mode system running side by side,
> if thats what yuo mean, but somehow i don't think so :)
>
> america though has 4 competing networks, gsm (by omnitel i think), cdma,
> tdma and something else. their idea was that the market would decide which
> protocol was the best (economically), with the result that its hard for
> people in one network to speak to another.
>
> the rest of the world is either standardised on gsm, or pdp (japan).
>
> /sunny
>
> -----Original Message-----
> From: Sofia Foo [mailto:sfoo@apis.dhl.com\
> Sent: 02 May 2001 11:22
> To: wirelessdevnet.com - list
> Subject: MobileLBSList: mobile network protocols
> Importance: High
>
> hi all!
> i was wondering ... is it possible to have two different mobile network
> protocols running in a country?
> if possible (2 protocols in a country network) , is there any country
> deploying this?
> thanks!
> sofia
>
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