I am in the same boat as John . I recently bought a T-mobile pay as you 
go phone. Siemens with Triband,( use overseas ,but no camera or Blue 
tooth feature) for us the best buy since you get 1000.00 minutes for $ 
100.00  lasting for 365 days  if you don't deplete it earlier.  and 
every card bought later ( even the $ 25.00)will extend the usage for 
another whole year and  15% more airtime.( I have  had the same 
features on a phone in Europe for over ten years and it allows me to 
keep the same phone and number even if I went to europe only once a 
year. A good thing with T-mobile is, that you don't lose minutes when 
receiving calls overseas. T-moble will unlock the phone after three 
months, allowing you to change Sim cards.Cingular has great 
restrictions .I  want to buy one for my husband, and am tending toward 
a motorola V 330, or V551, or This razs phone John talks about, which I 
liked but which I can't use because i want to use it without a contract 
  with T-mobile and only Cingular carries it and the go-phone uses for  
Cingular are much more restricted than T-mobile.
Why is it anyhow that these different companies use only certain phones 
of certain makes? I have been dealing with  Motorola trying to get that 
razr phone to use with T-mobile- I am still negotiating. - With Verizon 
and Sprint I could not find the "pay as you go" features at all.
And then I am dabbling with the Blue tooth capabilites, for my husband 
is hard of hearing and we thought he could then have it easier. Here I 
would appreciate your help, too.
Marta
On Jun 24, 2005, at 08:14, Brian O'Neal wrote:

> CDMA = Code Division Multiple Access
> GSM= Global system for mobile Communication
> GPS=Global positioning system
>
>
>  The better technology is hard to say. I'm not an expert. GSM is much 
> older than CDMA. I believe that GSM has better coverage, but CDMA has 
> an advantage when it comes to data transfer. GSM phones come with a 
> SIM card. This sim card can allow you to change phones by taking out 
> the sim card and inserting it into another phone. But, with that comes 
> the problem of subsidy locked phones. I had a GSM Palm OS phone (a 
> Tungsten W) It was locked to the AT&T wireless service, meaning I 
> could not take it to another GSM carrier like T-Mobile or Cingular 
> before the merger.  Most all carriers lock their phones. Some will 
> unlock them after a certain amount of time has passed. I think that I 
> would go with the CDMA phone. Mainly because I believe, but am not 
> certain, that CDMA has faster data throughput than GSM, and since your 
> phone can do Web, email and SMS, you may want to utilize those down 
> the line.
>  Just using it as a phone you shouldn't notice a difference, except 
> maybe the way the audio sounds from different compression methods. 
> Clarity should be there with both.
>
> Opinion, Verizon-good, Cingular-bad, Sprint-OK, AT&T-Thank goodness 
> they no longer exist.
>
> Brian O'Neal
>
>
>
>
>
>
> On Jun 24, 2005, at 1:14 AM, John Robinson wrote:
>
> Advise is needed.
>
> Today I checked with Verizon on a phone (Treo 650) and it's 
> integration with a MAC.  On the Palm website some of the features are 
> only available for Windows, some for the MAC as well.
>
> I also checked with Cingular on the Motorola Razor phone, not as many 
> features, but a very small phone.
>
> Here is my question for the group, as I had two stories.
>
> The Verison salesperson said that the CDMA network that they used is 
> far superior to the GSM (I thought it was GPS, not sure) that Cingular 
> uses.
>
> Once I got to the Cingular store they pointed out that the GPS was far 
> superior to downloading of email, getting connected to the web, etc. 
> then the older technology of CDMA.
>
> So once again I ask the advise of the experts.  Which is the better 
> technology?  Will it matter if you are using it only for a phone?  If 
> you do what internet connection then would that make a difference as 
> to which is better.
>
> Many thanks, I so appreciate the groups help.
>
> John Robinson
>
>
>
> | The next meeting of the Louisville Computer Society will
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>
>
>
>
> | The next meeting of the Louisville Computer Society will
> | be July 26. The LCS Web page is <http://www.kymac.org>.
> | List posting address: <mailto:macgroup at erdos.math.louisville.edu>
> | List Web page: <http://erdos.math.louisville.edu/macgroup>
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