I have a Bold 9780 on O2 in the UK and every so often it ... BlackBerry Smartphones forum
Bold 9780 call failed issue
I have a Bold 9780 on O2 in the UK and every so often it suddenly starts to give me a Call Failed notice and the phone will not work at all, when this happens I have strong 3G signal and no reason for Call failed, this was really bugging me however, I have figured out that if I under settings, Mobile network, I change from 3G to 2G it resolves this problem. After making a few calls I switch it back to 2G or 3G setting the phone goes back to a 3G strong signal and makes call OK. Does anybody understand why this is happening?
First thing I'd do is contact O2 and tell them exactly what you've told us here. It sounds like a carrier issue. They can perform some troubleshooting and hopefully get your problem resolved.
Agree with RogerG on this. Get on to them straight away.
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