Stream file transfers: TURN relay-only connectivity

Release Notes

Summary

Stream file transfers now route exclusively through the TURN
relay when TURN servers are configured. This improves connection
reliability in networks that block direct peer-to-peer paths and
aligns file transfer behavior with the secure viewer.

Changes

• When TURN servers are configured for a stream session, file
  transfers now use relay-only WebRTC transport instead of also
  attempting direct peer-to-peer connections.
• Both participants in a file transfer are directed through the
  organization's TURN gateway, matching secure viewer connectivity
  behavior.

Impact

Behavior change: When TURN is configured, file transfers rely on
TURN relay connectivity. Direct peer-to-peer paths are no longer
used in those sessions.

Future iterations will make direct P2P available.

Classification

• Bug Fix
• Tenant Workflow
• Security