How do I insert an ATT SIM Card in a Verizon phone?????

I bought the Palm Treo 650 from eBay. This phone is a Verizon phone but the SIM Card that I have belongs to ATT. How can I change the phone so it can work with my ATT contract????How do I insert an ATT SIM Card in a Verizon phone?????
Not possible. Here's the specifics:



The Verizon network uses CDMA technology. That stands for Code Division Multiple Access. Verizon phones do not use SIM cards period.



AT%26amp;T uses the GSM network. THis stands for GLobal System for Mobile. Only AT%26amp;T and T-Mobile use it. Only phones can be swapped between AT%26amp;T and T-mobile as of right now. In the future, Verizon will develop technology that will allow the same usage as the AT%26amp;T network, but as of right now, that's not possible.



It is not possible to unlock a Verizon phone for AT%26amp;T use either, since Verizon phones do not use SIM Cards. Hope this helped.How do I insert an ATT SIM Card in a Verizon phone?????
I don't know where you could go to do t his, but you need to get the phone unlocked so that you can insert SIM cards from any network.

Hope this helpsHow do I insert an ATT SIM Card in a Verizon phone?????
You won't be able to. Verizon Wireless phones only work on CDMA networks. AT%26amp;T uses GSM. As a result, all CDMA carriers such as Verizon Wireless, Sprint, Alltel, do not use SIM Cards.



There is no possible way for you to %26quot;unlock%26quot; that phone to work on a GSM network. How do I insert an ATT SIM Card in a Verizon phone?????
Options are:



A) Paperweight



B) Switch to Verizon



C) resell on eBay