Very annoying to see this problem again - the last time this was happening it was blamed on (and delayed the launch of) XT.
Yesterday someone tried multiple times to call me from around 10am but no calls came through to the mobile despite me knowing I was at home, not moving around, and "within coverage".
This morning at 11:28am I get a TXT notification advising me of new voicemail - again, the phone never rang and I was within the coverage zone.
Tonight (just now) a friend tried phoning me (from beside me) from his XT mobile and it went straight through to my voicemail. Visually my iPhone had "full" signal, for what that is worth (I was looking at it and anticipating the call to come through).
Where to from here? Don't really feel like paying $1 to report what is essentially something that appears to fall in Vodafone's area of responsibility.