Just bought a used Compact II (unlocked) from eBay.
After inserting my Vodafone sim card, I can send/receive texts but cannot make or receive calls.
When I try to dial out, I just get a <ding> <ding> <ding> and the call is ended (duration 0:00).
Whe I try to call the phone, I just get a 'Network Error'.
Tried a Virgin Pay As You Go sim and get the same problem except when I try to call the phone, I get a 'this phone is currently not receiving calls' message.