Originally Posted by ajri02
If you turn off internet access on a blackberry, you cannot make phone calls or text messages. Why is this?
Assuming VZW BB's have the same options, you're probably turning All Connections Off (via Manage Connections) instead of turning Data Services Off (via Options->Mobile Network).
Turn All Connections Off disables the radio so the BB can't transmit or receive and it will affect both voice and data. Data Services Off disables only data.