Webhooks
Receive real-time HTTP POST notifications for call events, SMS delivery reports, and billing alerts. JSON payloads with full event context. Configure per-scenario or globally via the API.
Overview
Callr webhooks deliver real-time HTTP POST notifications to your server whenever key events occur: call status changes, SMS delivery reports, recording completions, billing thresholds, and more. All payloads are JSON-formatted with full event context.
Event Types
Call events: incoming call, call answered, call ended, recording ready. SMS events: delivery report (DLR), inbound SMS received. Billing events: balance threshold alerts. Each event includes timestamps, call/message metadata, and scenario context.
Configuration
Define webhook URLs per Callr Actions scenario using the fetch@v2 action in the hangup branch. Or configure global webhooks via the API for account-wide notifications. Webhook payloads can be customized with any combination of pre-defined variables.
Reliability
Automatic retry with exponential backoff on failed deliveries. Webhook logs available in the Portal for debugging. HMAC signature validation to verify payload authenticity.
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