18Copyright © 2004 Nokia. All rights reserved.Muting an ongoing callYou can mute or unmute the ongoing call by pressing the power key briefly.Voice diallingWhen no call is in progress, press and hold the answer/end key until you hear atone that indicates that you can say the desired name ("voice tag"). Say the voicetag. The phone plays the voice tag and dials the related phone number.You can also activate voice dialling with the phone. For details on voice dialling,see the phone’s user’s guide. Note that this function is only available if the phonesupports voice dialling.■ Adjusting the earphone volumePress the volume up key to increase or the volume down key to decrease thevolume. To adjust the volume quickly, press and hold either of these keys.■ Switching the call between phone and headsetYou can switch the active call between the headset and all compatible phones. Toswitch the call from the headset to the phone and vice versa, press and hold theanswer/end key or use the respective function in your phone.