Certain numbers..

[NBernie]

For certain numbers, i cannot call it says the phone is unavailable and also quite often now when i send a text the delivery report says 'waiting' and doesnt send for a few hours.

Anyone have any ideas what it could be?

[geordieboy]

sounds like a network problem in your network zone call vodafone and see what they say..... could be a problem with your local mast!