Tried calling an overseas number with TPG mobile network. No ringing tone at all and when connected it seemed to be a wrong number, I could only hear unclear broken speech from the other side. Tried 5 times and the same.  Pretty sure the number was correct as I selected it from my recent call list. Changed to use a different phone service provider and the call was normal and successful. The receiver also confirmed that there were no prior calls from me. What went wrong with TPG international calls? ... View more