Audio Features
Polycom, Inc. 26
USB Audio Calls
You can use Polycom Trio 8800 or 8500 as an audio device for your tablet or laptop by connecting your
device to the Polycom Trio system with the USB cable supplied in the box.
When you connect a Microsoft® Windows® computer to the Polycom Trio system using a USB cable, you
can control the volume of audio and video calls from the computer or Polycom Trio system, and the volume
on both devices is synchronized.
You can use the Polycom Trio 8800 or 8500 system as an audio speakerphone when connected by USB to
Mac computers running one of the following software versions:
● macOS 10.9.x (Mavericks)
● macOS 10.10.x (Yosemite)
● macOS 10.11.x (El Capitan)
Configuring USB Calls
You can configure settings for USB calls.
Audio Output Parameters
Parameter
Temp l at e
Permitted Values
up.audio.networkedDevicePlayout
new.cfg
PhoneOnly (default) - Audio plays out on the Polycom Trio 8800
speakers.
TvOnly - Audio plays out on the TV/monitor speakers connected by
HDMI to a paired Polycom Trio Visual+ and, if connected, external
speakers connected to the 3.5mm port of a paired Polycom Trio
Visual+.
Auto - Audio-only calls play out on the Polycom Trio system
speakers. Video-call audio plays out on the TV/monitor speakers
connected by HDMI to a paired Polycom Trio Visual+ and, if
connected, external speakers connected to the 3.5mm port of a
paired Polycom Trio Visual+.
USB Call Parameters
Parameter
Template Permitted Values
device.baseProfile
device.cfg
Generic - Disables the Skype for Business graphic interface.
Lync - Use this Base Profile for Skype for Business deployments.
SkypeUSB - Use this Base Profile when you want to connect Polycom Trio to a
Microsoft Room System or a Microsoft Surface Hub.
voice.usb.holdResume.e
nable
feature.cfg
0 (default) - The Hold and Resume buttons do not display during USB calls.
1 - The Hold and Resume buttons display during USB calls.
This parameter applies only when Polycom Trio Base Profile is set to ‘SkypeUSB’.