Yealink CP960 User Guide765. Tap .Redialing a Call AutomaticallyBefore You BeginEnable auto redial feature on the phone.Procedure1. When the callee is busy, the phone screen prompts whether to auto redial the contact, tap OK to activate autoredial.The phone screen displays the redial times and interval.2. Wait for the designated period of time or tap OK to redial the phone number immediately.The phone will retry as many times as configured until the callee answers the call.Call MuteYou can mute the microphone of the active audio device during an active call so that the other party cannot hear you.Procedure1. To mute the microphone, do one of the following:l Tap the Mute touch key in any status.l When in a call, tap Mute.2. To unmute the microphone, do one of the following:l Tap the Mute touch key again in any status.l When in a call, tap Mute again.NoteContact your system administrator, if you can only mute the microphone during an active call or the mute feature is deac-tivated when the active call ends.