Contracts 1.27.0

A release of Phases 0 and 1. Its operations are carried by every later release. The Phase 0 host serves them as part of 1.65.0.

The public document of 1.27.0 lists 48 operations, 0 of them added in this release and still in 1.65.0.

Call event types added

call.answered, call.created, call.end_requested, call.ended, call.ringing, dial.started, participant.left, room.finished