Nexus S no calls only Internet works. WTF?

[Guest Kyliem]

Hi.I have Nexus S and i can't make or recive calls.

Internet is working like charm.

i've tried to flash diffrent radios but same thing: Mobile network unavailable but internet works .

CM7 on it. WTF?

[Guest smethrony]

You have Nexus S and you are facing problem of calls. It is a problem with your SIM. You have to check your phone settings. Just go in setting menu and select call option and reset it. I think this way your problem will be solved.