©2002 Nokia Corporation. All rights reserved. 27Basic functionsAdjusting the earpiece volumeYou can adjust the earpiece volume during a call. Press to increase and todecrease the volume level. Alternatively, use the volume keys on the bottom sideof the phone.Muting the microphoneTo turn off the phone’s microphone during a call: Press and then (Options), scroll to Mute,and press (Select).To turn on the microphone: Press and then (Options), scroll to Unmute, and press(Select).RediallingTo redial one of the last 20 phone numbers you have called or attempted to call: Press once instandby mode, scroll with or to the desired phone number or name, and press (Call).Speed dialling a phone numberIf you have assigned a phone number to one of the speed dialling keys, you can call this phone numberin one of the following ways (in standby mode):• Press the corresponding speed dialling key and then (Call).• If the Speed dialling function is on (see page 52): Press and hold the speed dialling key until the callis started.Note that pressing and holding the number key 1 calls your voice mailbox.