36Options during a callMicrophone off and onSwitching your phone’s microphoneoff1. Press Options > Mute [ ].Switching your phone’s microphoneback on1. Press Options > Unmute.Talking on speaker1. Press Speaker Phone [ ].Removing background noiseYou can eliminate background noise fromconversations and improve the voicequality of communications by setting NoiseSuppression to On.1 Press Options> Noise Suppression.2. Select On or Off.Putting a call on hold and returning NPutting a call on hold1. Press Options > Hold or pressS.Returning to a held call1. Press Options > Unhold or pressSagain.