Regarding Teams Meeting Media Transport Behavior in VDI Optimization Scenario

Hello Microsoft Teams Engineering Team,

I am currently working on a Browser Content Redirection / media offload implementation for a VDI environment, where WebRTC media transport is handled through a local native component while the Teams application continues running inside the virtual desktop session.

While testing, I observed that:

1:1 calls successfully receive audio and video media

But in meetings auido / video RTP is never forwarded despite successful ICE, DTLS, and SRTP establishment

DTLS ApplicationData traffic is present during meetings, suggesting DataChannel/SCTP activity

Based on transport-level observations, it appears that Teams meetings may rely on SCTP/DataChannel communication for SFU video subscription management, while 1:1 calls do not require the same subscription flow.

I wanted to ask whether:

Teams meeting video forwarding depends on active bidirectional SCTP/DataChannel connectivity

Meeting video subscriptions are expected to be coordinated over the WebRTC data channel/control plane

Split ownership of media transport and control-plane transport could affect expected Teams meeting behavior in VDI optimization scenarios

Thank you for your time and guidance.

Best regards,Rajdev