Answer: D Format an international telephone number.
Description:
Answer: C we have to use both option 1 & 2
Description: If we want to handle call interruption scenarios, then get the object of TelephonyManager and start listening to CALL_STATE using PhoneStateListener class's onCallStateChanged() functionality.
Answer: C i & iii
Description: If we want to handle call interruption scenarios, then get the object of TelephonyManager and start listening to CALL_STATE using PhoneStateListener class's onCallStateChanged() functionality. onCallStateChanged() function has a int state parameter which will be equal to CALL_STATE_RINGING when an incoming call arrives.
Answer: C CALL_STATE_ONHOOK
Description: TelephonyMnager has only 3 states, CALL_STATE_RINGING, CALL_STATE_OFFHOOK, and CALL_STATE_IDLE.
Answer: A notifyPhoneCallState has to be called if your application wishes to receive a notification about an incoming phone call.
Description: