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Screen Mirroring

The Polycom Trio 8800 system provides screen mirroring locally from Apple® AirPlay®-certified devices and the Wireless Display feature for Miracast®-certified Android™ and Windows® devices.

Screen Mirroring with AirPlay Certified Devices

This section provides information you need to set up and configure the Polycom Trio 8800 system to work with AirPlay certified devices.

The following information applies to using AirPlay certified devices with the Polycom Trio 8800 system:

You can display local content only from your AirPlay certified device to the Polycom Trio 8800 system monitor.

Sharing content from direct streaming sources, such as YouTube™ or web links, is not supported.

If you share content during a point-to-point or conference call, the content is not sent to far-end participants.

Audio-only content is not supported. If you only want to share audio, consider using Bluetooth or USB connectivity.

Apple Lossless Audio Codec (ALAC) is not supported.

The Polycom Trio 8800 system supports the following AirPlay certified devices:

Apple® iPhone®

iPad®

iPad Pro™

MacBook Pro®

The Polycom Trio 8800 system supports a maximum resolution and frame rate of 720p@60fps or 1080p@30fps. If configured for 1080p resolution, an iPad often sends 60fps video, which can result in latency in mirroring, visual artifacts, or both.

When the Polycom Trio 8800 system receives content from a Skype for Business client using the Remote Desktop Protocol (RDP) at the same time as content from an AirPlay certified device, the AirPlay content takes precedence and displays. When you end AirPlay content, available Skype for Business content displays.

Requirements

You must meet the following requirements to use the screen mirroring feature on an AirPlay certified device with the Polycom Trio 8800 system:

Polycom Trio 8800 collaboration kit running UC Software version 5.4.4AA or later

The Polycom Trio 8800 system and Apple devices are on the same subnet.

The devices can be on different subnets if the devices are routable and multicast DNS (Bonjour) is bridged between the subnets for discovery. The devices can also be on different subnets if AirPlay Discovery over Bluetooth is enabled, the subnets are routable to each other, and the device is within Bluetooth range.

The screen mirroring feature uses the following ports:

ØDiscovery: UDP port 5353

ØSessions: TCP ports 7000, 7100, 8009, and 47000; UDP port 1900

Polycom Trio 8800 for AirPlay Parameters

Use the following parameters to configure the Polycom Trio 8800 system for AirPlay certified devices.

Polycom Trio 8800 for AirPlay Parameters
Template
Parameter
Permitted Values
Restart Causes Restart or Reboot

features.cfg

content.airplayServer.authType

none (default) - No security code for AirPlay certified devices is required.
passcode - Use a security code to authenticate AirPlay certified devices.
No

features.cfg

content.airplayServer.discovery.bluetooth.enabled

Set to allow Airplay discovery over Bluetooth.
1 (default) - Enables Polycom Trio 8800 to be discoverable to AirPlay-certified devices over Bluetooth. Turns Bluetooth radio on when feature.bluetooth.enabled=1.
0 - Polycom Trio 8800 is not discoverable to AirPlay-certified devices over Bluetooth.
Note: To use this feature, enable the parameter feature.bluetooth.enabled.
No

features.cfg

content.airplayServer.enabled

0 (default) - Disable the content sink for AirPlay certified devices.
1 - Enable the content sink for AirPlay certified devices.
No

features.cfg

content.airplayServer.maxResolution

Set the content resolution.
720p (default)
1080p
1024x1024
960x960
480x480
No

features.cfg

content.airplayServer.name

Specify a system name for the local content sink for AirPlay certified devices. If left blank the previously configured or default system name is used.
NULL (default)
No

features.cfg

content.local.authChangeInterval

Set the interval in minutes between changes to the local content authentication credentials.
1440 (default)
0 - 65535
0 - Do not change
No

features.cfg

content.local.authChangeMode

Specify when the security code for content sharing with AirPlay certified devices changes.
session (default) - Code changes at the end of each content sharing session.
relativeTime - Code changes at an interval specified by the content.local.authChangeInterval parameter.
No

Troubleshooting

This section provides solutions to common issues you may have using the Polycom Trio 8800 system with AirPlay certified devices.

The Polycom Trio 8800 system does not advertise on my device

The Polycom Trio may not be broadcasting for discovery, or the broadcasts are being blocked.

Ensure your Apple device is on the same subnet as the Polycom Trio 8800 system and that Polycom Trio has screen mirroring enabled.

Configuring Debugging Logs

If you experience further issues using AirPlay certified devices with the Polycom Trio 8800 system, you can enable the following logging parameters on your Polycom Trio to get extended debugging data.

Screen Mirroring Debugging Parameters
Log Component
Permitted Values
airp
Session management and communication specifically for AirPlay certified devices.
airpl
Protocol library for AirPlay certified devices
airps
Android service AirPlay certified devices
lc
Local Content (including for AirPlay certified devices and PPCIP) session management

Screen Mirroring with Miracast-Certified Devices

The Wireless Display feature lets you display content locally from your Miracast-certified Android or Windows device to the Polycom Trio 8800 system monitor. Windows or Android devices can discover and connect directly with the Polycom Trio 8800 system and do not have to be on the same network.

The Polycom Trio 8800 system supports content sharing from the following Android and Windows devices:

ØMiracast-certified devices running Windows 10

ØSamsung Galaxy smartphones and tablets running Android version 4.4 or earlier

 

Polycom cannot guarantee connectivity with all Miracast-certified devices, but connectivity has been validated to work well with Samsung smartphones and tablets using Android version 4.4 or later and the Microsoft Surface® 3 Pro and Surface® 4 Pro running Windows 10.

To send content from your device, you must first connect your device wirelessly to the Polycom Trio 8800 system.

The Polycom Trio 8800 system can display content to a maximum resolution and frame rate of 720p@60fps or 1080p@30fps. If the Polycom Trio 8800 system is configured to auto-negotiate the frame rate of transmitted content, some tablets might send 1080p@60fps video, which can result in latency in mirroring, visual artifacts, or both.

Requirements

You must meet the following requirements to use the Wireless Display feature on a Miracast-certified device with the Polycom Trio 8800 system:

Polycom Trio 8800 collaboration kit running UC Software version 5.4.4AA or later

If you do not allow auto-negotiation, some devices might fail to pick the best possible video stream parameters.

Configuring the Polycom Trio 8800 for Miracast-Certified Devices

Use the following parameters to configure Wireless Display on the Polycom Trio 8800 system.

Wireless Display Parameters
Template Parameter Permitted Values Change Causes Restart or Reboot
features.cfg content.wirelessDisplay.sink.authorizationType Auto (Default) - Content is automatically accepted and displays on the Polycom Trio 8800 system.Button - Users must confirm content acceptance on a popup message. No
features.cfg content.wirelessDisplay.sink.bitrate Set the content maximum bitrate in Mbps30 (default)0 - 600 allows auto-negotiation. No
features.cfg content.wirelessDisplay.sink.enabled 0 (default) - Disable Wireless Display.1 - Enable Wireless Display. No
features.cfg content.wirelessDisplay.sink.fps Set the content frame rate in frames per second.30 (default)0 - 600 allows auto-negotiation No
features.cfg content.wirelessDisplay.sink.height Set the maximum content height in pixels.1080 (default)0 - 12000 allows auto-negotiation No
features.cfg content.wirelessDisplay.sink.name NULL - defaultSpecify a system name for the local content sink for Android or Windows devices. If left blank the previously configured or default system name is used. No
features.cfg content.wirelessDisplay.sink.width Set the maximum content width in pixels.1920 (Default and Maximum)0 allows auto-negotiation No

Troubleshooting

This section provides solutions to common issues you may have using Wireless Display on the Polycom Trio 8800 system.

My Polycom Trio 8800 system does not advertise on my smartphone or tablet

If the Polycom Trio 8800 system does not advertise on your smartphone or tablet device, check the following:

Ensure Wi-Fi is enabled on your device and the band is set to 2.4GHz or Auto. The Auto setting allows the connecting device better access to a free wireless channel.

Ensure the correct country of operation is set and that both bands are selected on the Polycom Trio 8800 system by configuring the following:

device.wifi.country.set="1"device.wifi.country="CA"device.wifi.radio.band2_4GHz.enable.set="1"    device.wifi.radio.band2_4GHz.enable="1"device.wifi.radio.band5GHz.enable.set="1"

device.wifi.radio.band5GHz.enable="1"

device.wifi.enabled.set="1"

device.wifi.enabled="0"

device.net.enabled.set="1"

device.net.enabled="1"

 

The WLAN operating mode on the Polycom Trio 8800 system is mutually exclusive of the Wireless Display feature. You can enable Wireless Display only if wired Ethernet is used for calling and conferencing. Ensure that wired Ethernet is used for calling and conferencing by configuring the following:

Video Quality is Poor

Incorrect image resolution can cause content delays and video artifacts. Note that the Polycom Trio 8800 system does not accept 1080@60fps video resolution.

To resolve video quality issues, configure the following for the Polycom Trio 8800 system:

content.wirelessDisplay.sink.width="0"

content.wirelessDisplay.sink.height="0"

content.wirelessDisplay.sink.fps="0"

In addition, you can set a limit on the live stream parameters by setting:

content.wirelessDisplay.sink.fps="30"

Configuring Debugging Logs

If you experience further issues using Wireless Display on the Polycom Trio 8800 system, you can enable the following logging parameters on your Polycom Trio 8800 system to get extended debugging data.

Wireless Display Debugging Parameters
Parameters Permitted Values
wdisp Wireless Display session management and communication with the Wireless Display source
apps Wireless Display support for Android
lc Local Content (including Wireless Display and PPCIP) session management

Access Diagnostic Information

If you experience issues using Wireless Display on the Polycom Trio 8800 system, you can access diagnostic information from the Polycom Trio 8800 menu.

Procedure:

1On the phone menu, go to one of the following settings:

ØSettings > Status > Diagnostics > Local Content Media Statistics.

ØSettings > Status > Diagnostics > Graphs > Local Video Content Statistics.

ØSettings > Status > Diagnostics > Graphs > Networked Devices Graphs.

ØSettings > Status > Diagnostics > Networked Devices > Statistics.

 

Related Topics

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