Outgoing voice was gated on the observer's roster copy of the remote user's
voice state, which is signaling gossip. The signal server broadcasts
`user_left` for any socket it declares dead, so a suspended laptop or a flaky
hop wiped that copy and the observer detached its microphone from a peer that
never left the channel - a silent member with no way back through the UI.
`decideVoicePathRouting` now closes a path only on positive evidence: we left
voice, the peer itself reported another channel or none, or the connection is
gone. Missing gossip holds an established path instead. Opening still needs
confirmation, so a guess never starts sending; the same rule gates playback,
camera video, and the microphone a new connection puts in its first offer.
Peers are also asked for their voice state when a connection or data channel
comes up, so a rebuilt path re-confirms itself.
Alongside it, the microphone can be switched mid-call: capture moves to a
device service and rules, the live track is swapped with `replaceTrack` so
the session is never renegotiated, and the speaking indicator follows the new
stream.
stale server sockets, passive non-initiators, and race conditions
during peer connection setup.
Fix users unable to see or hear each other in voice channels due to
stale server sockets, passive non-initiators, and race conditions
during peer connection setup.
Server:
- Close stale WebSocket connections sharing the same oderId in
handleIdentify instead of letting them linger up to 45s
- Make user_joined/user_left broadcasts identity-aware so duplicate
sockets don't produce phantom join/leave events
- Include serverIds in user_left payload for multi-room presence
- Simplify findUserByOderId now that stale sockets are cleaned up
Client - signaling:
- Add fallback offer system with 1s timer for missed user_joined races
- Add non-initiator takeover after 5s when the initiator fails to send
an offer (NON_INITIATOR_GIVE_UP_MS)
- Scope peerServerMap per signaling URL to prevent cross-server
collisions
- Add socket identity guards on all signaling event handlers
- Replace canReusePeerConnection with hasActivePeerConnection and
isPeerConnectionNegotiating with extended grace periods
Client - peer connections:
- Extract replaceUnusablePeer helper to deduplicate stale peer
replacement in offer and ICE handlers
- Add stale connectionstatechange guard to ignore events from replaced
RTCPeerConnection instances
- Use deterministic initiator election in peer recovery reconnects
- Track createdAt on PeerData for staleness detection
Client - presence:
- Add multi-room presence tracking via presenceServerIds on User
- Replace clearUsers + individual userJoined with syncServerPresence
for atomic server roster updates
- Make userLeft handle partial server removal instead of full eviction
Documentation:
- Add server-side connection hygiene, non-initiator takeover, and stale
peer replacement sections to the realtime README
myxelium