The multi-function button controls speakerphone calls on your mobile device from the speaker. Below is a list of speakerphone functions.
Applies to:
make a call:
press and hold the multi-function button to activate voice dial (siri®)
turn off speakerphone and switch to a mobile device (in-call):
press and hold the multi-function button
receive a call:
press the multi-function button
reject a call:
press and hold the multi-function button
end a call:
press the multi-function button
mute a call:
press and hold the + and - buttons simultaneously. press and hold again to unmute
switch between calls:
press the multi-function button twice