Joining a voice channel alone sends a call notification (m.rtc.notification)
to the room, and the timeline rendered every unanswered one as "Missed call
from X", so everyone in the channel saw a missed call from someone who had
just joined it. Ringing already excluded these rooms; the missed-call line
didn't.
utils/callRing.ts (unit-tested) holds the one rule for both: only DMs and
invite-only groups outside any space ring or show "Missed call"; voice
rooms, space channels, restricted and public rooms don't.
Verified headless with the same two notifications from Bob: the Voice
Lounge chat showed 2 "Missed call" lines before, 0 after; a small
invite-only group still shows its missed call.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5
