According to the manual coming from the Federal Communications Commission report, the Lumia 610 will come on the market with the new "Flip to Mute" option.The Flip to Mute will only make the phone silent when another user is calling simply inverting the handset.
HTC has a similar feature but it goes through their external Attentive Phone application.Unfortunately it is not clear whether this will be a feature of Windows Phone Tango or will be exclusive to Nokia.
