HTC S710 Mode D'Emploi

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Using Phone Features  43
To turn on and off the Speakerphone
  During a call, click Menu > Speakerphone On. The 
 icon appears 
at the top of the screen.
  To turn off the Speakerphone, click Menu Speakerphone Off
Alternatively, the speakerphone can be toggled on and off by 
pressing and holding ( 
 ) during the call.
WARNING! 
To avoid damage to your hearing, do not hold your phone against 
your ear when the Speakerphone is turned on.
To mute a call
  During a call, click Menu > Mute.
When the microphone is turned off, the 
 icon appears on the screen. 
Click Menu Unmute to turn on the microphone again.
2.5  Additional Dialing Information
Make an emergency call
  Enter the appropriate emergency number for your locale,  
and press ( 
 ).
Tip 
Additional emergency numbers may be included in your SIM card. Contact 
your service provider for details.
Make an international call
1. 
Press and hold the O (Zero) key on the keypad until 
 appears.
2. 
Enter the full phone number, and press ( 
 ). 
For example: +(1)(909)(22222222) (country code) + (area code) + 
(phone number).