I just got my BB 8320 and now the problem is cant received the call from anyone cause those calls goes directly to the voice mail. i tried to cancel all the forwarding call and still cant received the calls. but when i move the sim card to another phone i can receive the call. why should i do ? many thanks for your help

Wirelessly posted (8700g)

Look at phone options, forwarding, check your settings.

ADDED: I glanced at your post again, and I guess you already did this.

What about doing a hard reset (remove battery for 30+ seconds)?

when you put your SIM card in your device, does it get signal? what does it say in the top right of the device? EDGE, edge, GSM, gsm, GPRS, gprs?

Wirelessly posted (8700g)

I like Sith's answers better than mine.