26Muting or Sending Keypad TonesThese options allow you to turn the key tones off or on. If the Mute Keypad Toneoption is selected, it allows you to press keys without hearing key tones duringa call.Note: To communicate with answering machines or computerized telephone systems, the SendKeypad Tone option must be selected.Switching off the Microphone (Mute)During a call, you can temporarily switch your phone microphone off so that theother person cannot hear you. Press the Mute/Unmute soft key.Searching for a Number in Address BookYou can search for a number from the Address Book during a call.1. Press the Options soft key, then select Contact List.2. Highlight the Contact List entry.– or –Enter the first few letters of the contact into the Search field to highlight theclosest match.3. Press Options ➔ View or to view your selected contact.Call WaitingThe Call Waiting feature alerts you of an incoming call while you have a call inprogress, if this service is supported by the network.To activate the Call waiting feature, press Menu ➔ Settings ➔ Calls ➔Voice Call ➔ Call Waiting ➔ Voice Call ➔ Activate.