My wife and I have both switched to O2 from T-Mobile and use HTC One Xs. My wife's office has poor reception, meaning that she frequently doesn't have a network connection when in certain areas at work.
On T-Mobile, I was able to send her a text when she was out of network range, and as soon as she came back within range, she would receive the text. However, now that we're on O2, the message doesn't arrive when she comes back within the signal area.
When we first realised that she wasn't receiving my texts, I sent her a test message at 11:30pm, a full 8.5 hours after she finished work and came back into range. This arrived instantly, and was rapidly followed by the messages I had sent her during the day. We've done the same text several times since then, and the same thing happens - she doesn't receive my messages until I send her another one.
This is obviously incredibly unhelpful. Presumably it means that O2 doesn't attempt to resend the messages, but is it a setting on our individual accounts or is it a global problem on O2?
