I dont have this problem when I was using Celcom Prepaid years ago. But now after I changed to postpaid plan, it happened two times. Inactive sim on my Sony Ericsson K800i for me is a serious problem. huhu. And I missed a few important calls today.
Whether the problem is from my handphone, or the service provider..i dont know. But my sister also have the same problem before this. I called celcom careline, the operator said that their network is okay at this moment. huh..
I am thinking, should I change the handphone, or the sim card, or the service provider. I was also a digi postpaid customer a few month ago, and now I think digi is better.