I went to the 'phone' (calls) app, then 'settings' and it appears that
visual voicemail setup had not been completed (although it had the
correct number and service provider settings). I've switched off visual
voicemail and the messages appear to hav...
I'm also getting these messages. I used to only get one every time my
phone restarted but a few days ago something changed and now the
messages occur multiple times per day.