While most of us take our smartphones with us everywhere we go, few of us answer them when they ring, especially if someone's calling from an unknown number. Instead, we let those calls go to ...
I'm on O2 and its still working for me. Doesn't help you, but rules out a specific O2/iOS5 bug. Maybe phone O2 and see, or check out their forums - seem quite good That sucks. I wish I had visual ...