You have a Azure Virtual Desktop deployment that uses Microsoft 355 cloud services including Microsoft Teams. Users use the Remote Desktop client to…

To enable media optimization for Microsoft Teams in Azure Virtual Desktop, a specific configuration is required across both the session host virtual machines (VMs) and the client endpoints.

1. The Microsoft Teams desktop application must be installed on the session host VMs using the per-machine method.

2. A registry key (isWVDEnvironment) must be created on the session host VMs to inform the Teams client that it is running in an AVD environment, which activates the optimization features.

3. The Remote Desktop WebRTC Redirector Service, which includes the WebSocket service, must be installed on the local Windows 10 client computers. This component handles the redirection and local processing of audio and video streams.

B. The isWVDEnvironment registry key is required on the session host VMs, not the local client computers, to enable optimization for the Teams app.

D. The Teams app on the local computer is irrelevant; the app must be installed on the session host VM for use within the AVD session.

E. The WebSocket Service is a client-side component required on the user's local computer, not on the session host virtual machine.

1. Microsoft. (2023). Use Microsoft Teams on Azure Virtual Desktop. Microsoft Learn.

Section: Prerequisites: This section explicitly states the requirements.

For (F): "Install the Teams desktop app on your VM image... We recommend installing the app per-machine..."

For (C): "Set the following registry key on the VM: HKLM\Software\Microsoft\Teams

Name: isWVDEnvironment

Type: DWORD

Value: 1."

For (A): "Install the latest version of the Windows Desktop client on a client device... Install the Remote Desktop WebRTC Redirector service on your local device."

2. Microsoft. (2023). Multimedia redirection for Azure Virtual Desktop. Microsoft Learn.

Section: Teams on Azure Virtual Desktop: This document details the architecture

stating

"The Teams desktop client

paired with the WebRTC redirector service

redirects audio and video for calls and meetings to the local device." This confirms the WebSocket/WebRTC service is a client-side component (A) and the Teams client is on the VM (F).