I have an iphone 3gs through gen-i which 2 days ago I had upgraded to a V3 sim to get the voicemail button going again.
However since that time I am having trouble with incoming calls - they are all going to voicemail.
I called the company that did the sim swap and they got telecom to do a network reset, once that was done the phone rang once and now all calls are going to voicemail again.
It's odd because i also have an iphone 3g which was upgraded to a V3 and it's been fine.
Anyone got any ideas about where to go from here?