Now it happened. My long served N900 quit today serving me as a phone. It just started to ignore calls and sms which are inbound for me. Everything outbound from N900 out works.

Any idea, why my N900 won't receive any GSM calls and SMS's. When I call, it just keeps ringing, but N900 is totally ignoring that.N900 shows full network for 3G/2G etc.

Some software issue?

I have the same issue. But not only can I not receive incoming calls or SMS, I can not send out going calls or SMS.

The only way for me to recover is to power off and on the Nokia N900. Could an application/daemon have crashed? Other applications and functions of the Nokia N900 appear to be working fine.

The other issue is that I don't know when this happens until I make a call or try to send an SMS.

if you are connected to the internet via 2G, you are not alone.