HTC HD mini User Manual page 52

 Chapter  Phone Calls
You can also tap the onscreen Speaker button (
hold the TALK/SEND button to turn the speakerphone on or off.
The speakerphone icon (
speakerphone is on.
To prevent potential damage to your hearing, do not hold the phone
against your ear when the speakerphone is on.
To mute the microphone during a call
Tap the Mute button (
the microphone is turned off, the mute icon (
screen.
To take two calls and switch between the calls
1. Press the TALK/SEND button to accept a second call, or tap the
Add Call button (
hold when you accept or dial the second call.
. To switch between the two calls, tap the Swap button (
tap the dim area onscreen that shows "On Hold".
To end calls
To end the current call, tap End Call or press the END button. If you
have two ongoing calls, tap Menu > End All Calls to end both calls.
) appears in the title bar when the
) to turn the microphone on or off. When
) to dial a second call. The first call is put on
) or press and
) appears on the
) or