650 not rcving calls on tmo service

[jfa]

It should look the same as the other one on the outside it has to fit in the sim card slot snugly. The difference is internal architecture and storage capacity.

[Nagual]

Tonight something very good happened...
I took my tmobile simcard that was not working properly with my treo 650 (making calls OK, internet OK, No incoming calls, NO incomings SMS) and decided to put it inside a Tmobile phone (not an unlocked).
When I turned on this tmobile phone and the phone logged into tmobile network it appeared the icon of a voice message (even if I was sure i did not receive any calls in the meantime). I called the voice mail center (123) and had confirmation that I had no messages in my voicemail.
I turned off the phone and placed the sim back into the treo 650.
Turned it on and.... tried to call it. TA-DA !!! It rang !!! And now I can receive incoming phone calls and SMS !
This is amazing...
If I think about the steps I took, the only thing that come out to my mind is that I had never placed my sim in a Tmobile phone before.
Before the Treo 650 I was using an unlocked European Sharp GX20 (not Tmobile branded).
When I received the Treo, I took the sim from the Sharp phone and placed it in the Treo.
So I believe that when I placed the sim in that Tmobile phone something happened in the Tmobile cellular system (something like a last automatic activation process) and now the sim can receive incoming calls and Sms.
I'll keep this thread posted to let you know if the situation is stable.
Right now I am really happy to fully enjoy my Treo.

[jfa]

sometimes luck is better than logic hope the thing stays stable crossing my fingers and knocking on wood for you!

[Nagual]

It has been about a week since I have been able to receive calls and incoming sms messages with my sim and I can confirm that everything is stable.
I suggest to all people having the same problem I had to try to place their t-mobile sim in a T-mobile branded phone and see if this solve their problems.
I thank the people in this thread for their support and cooperation.
All the best to all of you !