Twilio Changelog | Apr. 09, 2026
ConversationRelay Payment Card Industry (PCI) Compliance
Twilio ConversationRelay now supports Payment Card Industry (PCI) compliant Voice workflows when configured with PCI-compliant TTS (text-to-speech) and STT (speech-to-text) providers. Please refer to Twilio's Responsibility Matrix to see a list of PCI-compliant TTS/STT vendors and for further information. To learn more about ConversationRelay please see the docs.