ElevenLabs change history: Inbound Twilio calls experiencing intermittent connection failures

ElevenLabs reported a major degradation affecting <1% of inbound Twilio calls, preventing agent connections; outbound calls and other traffic were unaffected. The incident ran from 2026-08-18 06:00 UTC to 2026-08-18 12:43 UTC (6 h 43 min). A configuration error was rolled back; calls connected normally since ~11:00 UTC, with no customer action needed.