i am not sure what you mean. is this a setting i have to configure on the C3000? or on the phone? on the issue of the phone i got the setting sent by text from vodafone & i explained that i wanted gprs service ( i am on a contract).
Sorry, I missed this before - have you managed to get it working yet?
It's something you would configure in the dial up settings on the Z where you configure the APN details, although if the phone only has 1 set of GPRS settings, it should be the default, and hence not need explicit setting on the Z.
The problem can be if you've only been set up for WAP internet access, and not full internet access, which might be the case if you phone only supports WAP (ie isn't a Smartphone with a full internet browser).
If you can list the settings used in both your Z and in your phone it might be possible to work out whether it's a settings problem, or a Voda problem.