Zte X195 User Manual page 26

Besides sending and receiving calls, you can also do:
Press OK key to enter main Menu.
Hold Up key to set the phone in Silence All.
Press Down key to enter Messages menu.
Press Left key to enter MobileShop menu.
Press Right key to view All Contacts.
Press Call key to enter All Recent Calls.
Hold Clear key to lock phone's keypad.
25