Trying to ring a new T-mobile sim only contract number starting 07432 im ringing off the Three network but my number is a ported number from T-mobile. I can ring every other number on my contacts list apart from this one. I havent tried any other 07432 numbers though.
Strange thing is that number can ring me and voice call is fine. O2 sim can ring that 07432 number and so can landlines.
07432 number is in a unblocked orange san francisco and im using an iphone 4
I know there are alot of factors that could be causing this but just wandering anyone else had any problems with this sort of stuff