Specifies the audio output device
for the endpoint.
Valid values:
Auto - selects the audio
output device with higher
priority.
HDMI - selects the built-in
speakerphone of the display
device.
Line Output - selects the
speakerphone connected to
the Line Out port on the
VC110 all-in-one unit.
VCS Phone - selects the
VCP40 phone.
Default: Auto.
If VCS Phone is selected as the
audio output device manually or
automatically, the audio input
device must be VCS Phone or
Line In+VCS Phone.