Zoom Phone Webhooks
The Zoom Phone event catalog, published as an OpenAPI 3.1 document using the top-level webhooks object. It defines 71 real-time events covering call lifecycle (phone.caller_ringing, phone.callee_answered, phone.caller_ended, phone.callee_missed, phone.caller_hold, warm and blind transfers), recordings and transcripts, voicemail, fax, call and fax logs, SMS send and delivery, SMS campaign opt-in/opt-out and etiquette blocking, device registration, emergency alerts, AI call summaries, and account and group setting changes. Delivered to an HTTPS endpoint, with a WebSocket delivery option in public beta.