The answer goes to the caller only, so a second device on the same
account kept ringing for its full minute after the first picked up, and
then filed the call as missed. The device that answers or declines now
sends call-end to its own account's other devices, reason
answered-elsewhere or declined-elsewhere. A device still ringing for that
call stops and files nothing; one already on the call ignores it.
A send to this account's own devices carries no delivery key or key-log
prelude and is not refused for going unsealed. Its failures are logged
and never touch the call on this device.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
