Twilio to nullify conference_participant field in Voice Insights from August 2026

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Twilio will remove the conference_participant field from its Voice Insights Call Summary API and Event Streams on August 1, 2026. Rather than eliminating the field entirely, it will remain in API responses but return null for all calls, meaning no errors or schema changes will signal the deprecation. This silent failure mode is especially risky because existing code already handles null values for non-conference calls, making it impossible to detect when real conference data stops populating. Developers relying on this field for contact-center reporting or QA dashboards must instead migrate to Twilio's dedicated Conference Insights endpoints using ConferenceSid and ParticipantSid. Teams are advised to audit codebases and no-code pipelines now, as the practical impact — metrics quietly dropping to zero — will not surface through standard error monitoring.

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