What happens to an incoming voice call during a GPRS data session?

  GPRS Class B mobiles can be attached to both the GPRS and GSM networks,but they cannot transmit or receive on both simultaneously.If a mobile is in an activate GPRS data session when and incoming voice call detected,the user will be notified by an on -screen message,and then has the option to suspend the data session and accept the call, or continue with the data session and reject the call.