iPhone 3GS Emergency Screen

Hey,

if but sim-card in my iphone goes in Emergency screen, if someone is calling me i can answer, same with sms, but i cant call or do anything.

anyone know whats the problem?

if i take my card out its working.

soz for veryvery bad english !

CHEERS FROM ESTONIA !

Will need some more info:

1) Are you using the phone on the official carrier that it was supposed to be used on?
2) If not, how was the phone unlocked?
3) What version of iOS are you running?

That should help us get an answer.