SIM card Issues with T-Mobile

[joshua8580]

I just bought an unlocked Cingular TREO 650. I set it all up, and have a T-Mobile account. I can get to the web and make calls, but am unable to recivie any calls, the phone does not even ring. Anybody heard of this. I want to know if it is a T-Mobile or Treo issue.

[Nagual]

I just bought an unlocked Cingular TREO 650. I set it all up, and have a T-Mobile account. I can get to the web and make calls, but am unable to recivie any calls, the phone does not even ring. Anybody heard of this. I want to know if it is a T-Mobile or Treo issue.

I have the same problem with my T-mobile Sim card !
I have been able to check this issue with another T-mobile SIM and everything was perfect.
I have been on the phone with a T-mobile tech guy for 40 minutes but could not figure out why!
It seems that there is a problem with the combination of a particular T-mobile sim card and the Treo 650.
I could not identify what particular kind of SIM card.
Your only chance is to replace the SIM while keeping your phone number and see if it works.
I had bad luck: changed the SIM (paying 25 $) and keeping my phone number and having the same problem...

Hope you have an altrenate solution....

[jfa]

there is a post in a thread about certain T mobile sim cards not working if you will do a search using the words t-mobile sim card issues. It may have information to help you I m not sure are you the only one of the 5 with a tro and does your card work in another one of the phones? Please advise

[Nagual]

I found the thread: http://www.everythingtreo.com/forum/...vice-2516.html
Seems that problem has to do with some 32K sim cards and that it has been solved switching to a 64K sim card.
To answer your question my sim card works good in the other phones.

[jfa]

I glad you found that post I found it as well and waas trying to add it in to my reply but in switching back and forth I lost the thread temporarily and had to redo my post. Im glad you found it Good luck and happy treoing

[Nagual]

I have been able to solve my problem... please check this thread.

http://www.everythingtreo.com/forum/...vice-2516.html

[johnbaker]

I just bought an unlocked Cingular TREO 650. I set it all up, and have a T-Mobile account. I can get to the web and make calls, but am unable to recivie any calls, the phone does not even ring. Anybody heard of this. I want to know if it is a T-Mobile or Treo issue.

Joshua8580,

is it that u are able to get on the net w/o any internet plan ?