Calls
Make and answer a call
Make a call
Enter the phone number, including the country and area code if necessary, and press the call key. For international calls, press + for the international prefix (the + character replaces the international access code), enter the country code, the area code without the leading 0, if necessary, and the phone number.
Answer an incoming call
Press the call key.
Reject a call
Press the end key.
Adjust the volume
During a phone call, scroll up or down.