Pioneer AVIC-S2 - Manual (Page 36)

4.5 Operations During a Call
During a call, three functions are available:
End Mute Switch to
mobile phone.
z
If you need to input other numbers, such as an extension number, tap
to open the keypad and tap the digits. The keypad will close when you tap
the button again or when there has been no input for 5 seconds.
z
Tap the Mute button to mute your sound so that the other party
cannot hear you. To end the mute mode, tap the same button again.
z
Tap the Ignore button to end the call.
z
Tap the Transfer button to switch the call to your mobile phone. To
switch back to your device, tap the same button again.
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