79Telephone settingsSounds (normal & silent) settingsTable 12: Sounds settingsItem Description PageSound settings related to an Incomingcall: Ring volume Ring external melody for callsfrom an external source Ring internal melody for callsfrom an internal source Ring unknown call melody forcalls from an unknown source Group ring melody for callsfrom an group source Intercom ring melody for callsfrom an intercom source Emergency ring melody forcalls from an emergency callsource ARB ring melody for callsfrom an automatic ring backsource Increasing ring to determinewhether the Ring volumeincreases gradually Vibrator to define the tremblerfeature for calls81Sound settings related to an incomingmessage9: Notification volume83
