Subject: Repeated error-vapifault-worker-not-available on inbound calls

Starting around Aug 22, 2026, 13:08–13:20 UTC, multiple inbound calls to

Summit Networks AI Assistant

ended immediately with call.in-progress.error-vapifault-worker-not-available.

The latest affected example is

Inbound call on Aug 22 at 13:20 UTC

. It started and ended at the same timestamp, no conversation or tool call occurred, and its call-level error logs were empty.

Please investigate whether there was a worker-capacity or allocation incident affecting this account/SIP route during that window.