latestOpenAPI 3.1.02026-08-175661822.2 MB

3c7cf84cec44

Webhook Events

Call received event

Fired when a WhatsApp Business Call connects. For inbound (UIC) calls the event fires at the moment our Telnyx trunk bridges the consumer leg to the customer's forward-to destination; for outbound (BIC) calls it fires immediately after Meta accepts the connect. Branch on call.direction to distinguish.

postWebhookcall.received

Payload

idstring required

Stable webhook event ID

event'call.received' required

timestampstring date-time required

UTC time at which Zernio generated this event (set once when the event payload is built, before delivery is queued). Retries and redeliveries keep the original value, so it reflects the event, not the delivery attempt.

Response

Webhook received successfully