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Cellular Phone Forum / General / GSM / July 2005

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Verizon released the Treo 650 today.

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Carl Price - 25 May 2005 05:43 GMT
Verizon released the Treo 650 today.

A question though.  I have both Verizon and TMobile service.  I use
TMobile for travel to Europe with a SonyErricson T610.  As I understand
it the Treo uses a SIM card.  Is it possible to take out the Verizon SIM
and replace it with the TMobile SIM and use the phone with TMobile and
vice-versa?

How would one go about doing this since TMobile does not carry the 650
and according to their rep they have no plans to carry it.

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punk-tilous - 25 May 2005 16:11 GMT
> Verizon released the Treo 650 today.
>
[quoted text clipped - 6 lines]
> How would one go about doing this since TMobile does not carry the 650
> and according to their rep they have no plans to carry it.

This phone is probably "locked" so that it will only work with Verizon SIM
cards. I know this holds true for the Treo 650 being sold by Cingular.
However, for about $20 to $30, you can have it "unlocked" so that it will
take any SIM card.
Tim S - 28 May 2005 10:24 GMT
this phone will work with GSM and CDMA after being unlocked? I didn't
know CDMA even had SIM cards...

>> Verizon released the Treo 650 today.
>>
[quoted text clipped - 11 lines]
>However, for about $20 to $30, you can have it "unlocked" so that it will
>take any SIM card.
John Cummings - 27 May 2005 07:43 GMT
> Verizon released the Treo 650 today.
>
[quoted text clipped - 6 lines]
> How would one go about doing this since TMobile does not carry the 650
> and according to their rep they have no plans to carry it.

There are two Treo 650 models. The one using a SIM is the quadband GSM
model. The one Verizon (and Sprint) have is a dualband CDMA model, no SIM
allowed.Visit http://www.palmone.com/ .

John C.
Bruce D. Brown - 28 May 2005 15:21 GMT
The phone released by Verizon is different that the same phone from other
carriers.  The Verizon model is CDMA only and does not have a SIM Card that
can be taken out and changed.

Bruce D. Brown

> Verizon released the Treo 650 today.
>
[quoted text clipped - 6 lines]
> How would one go about doing this since TMobile does not carry the 650
> and according to their rep they have no plans to carry it.
singha_lvr - 02 Jul 2005 18:39 GMT
>Verizon released the Treo 650 today.
>
[quoted text clipped - 6 lines]
>How would one go about doing this since TMobile does not carry the 650
>and according to their rep they have no plans to carry it.

Impossible.

Verizon (and Sprint) uses a different technology than other carriers.
It's called CDMA and (at least in the US implementation) does NOT use
a SIM card.  If you want to use a GSM  phone you'll need to get the
phone from Cingular or T-Mobile. (I don't think T-Mobile has the 650
yet, but at least it uses GSM with a SIM card.)

The two phones (Treo 650- CDMA and Treo 650-GSM) are very different
and are not interchangable.
Bruce D. Brown - 02 Jul 2005 21:15 GMT
No,

The Verizon model is totally different that the T-Mobile version.  The
Verizon model uses CDMA technology while the T-Mobile uses GSM technology.
There is not a sim card in the Verizon phone to change or replace.

In other words the answer is "NO."

Bruce D. Brown

>>Verizon released the Treo 650 today.
>>
[quoted text clipped - 17 lines]
> The two phones (Treo 650- CDMA and Treo 650-GSM) are very different
> and are not interchangable.
 
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