Builds the StartBridgeSessionParams for a SCHEDULED Teams join.
Drives the call-ended handler for a call from a Graph change notification, then tears the call down.
Drives the retained Graph roster handler for a call from a Graph change notification.
Joins a Teams meeting by URL for a given agent identity and starts the bridge session.
Starts Teams meeting bridge sessions. One instance per server, constructed alongside the meetings router and sharing the TeamsAcsMediaRegistry with the server's ACS media adapter.