I have recently been experiencing some issues with my iPhone.
It has been "automatically" turning "off" my "Show My Caller ID"; resulting in me not being able to make any outgoing calls. This has been really frustrating.
I need to turn "on" my "Location Settings" (which I prefer to leave it off as it consumes more battery juice and I really don't need it as much - I can live with turning it on only when I need it, like using Maps). When I turn "on" my "Location Settings" the "Show My Caller ID" will then be turned "on", hence allowing me to make outgoing calls.
This is an issue as unless I subscribe to the "Block my caller ID" service with my cellular network, I am not able to access the "Show My Caller ID" function (its 'greyed' out).
I am with SingTel in Singapore.
Anyone with similar experiences?
MBP 15" / iMac 24" / iPhone 3GS / TC2TB, Mac OS X (10.6.2)