Callbacks
Call Recording Transcription Saved
This webhook uses Telnyx headers (telnyx-timestamp, telnyx-signature-ed25519) that are compatible with Standard Webhooks specification for SDK generation. Custom validation logic can map these to standard webhook-timestamp and webhook-signature equivalents. See https://github.com/standard-webhooks/standard-webhooks for details.
postWebhookcallRecordingTranscriptionSaved
Headers
telnyx-timestampinteger required
Unix timestamp for replay attack prevention
Unix timestamp (seconds since epoch) of when the webhook was sent - compatible with webhook-timestamp
telnyx-signature-ed25519string required
Ed25519 signature of timestamp|payload for verification
Base64 encoded Ed25519 signature for webhook verification - compatible with webhook-signature
Payload
Example payload
{
"data": {
"event_type": "call.recording.transcription.saved",
"id": "898e96ef-be63-45aa-9e7d-01332bff9a97",
"occurred_at": "2025-02-19T17:02:49.371454Z",
"payload": {
"call_control_id": "v3:MdI91X4lWFEs7IgbBEOT9M4AigoY08M0WWZFISt1Yw2axZ_IiE4pqg",
"call_leg_id": "428c31b6-7af4-4bcb-b7f5-5013ef9657c1",
"call_session_id": "428c31b6-7af4-4bcb-b7f5-5013ef9657c1",
"calling_party_type": "pstn",
"client_state": "aGF2ZSBhIG5pY2UgZGF5ID1d",
"connection_id": "7267xxxxxxxxxxxxxx",
"recording_id": "428c31b6-7af4-4bcb-b7f5-5013ef9657c1",
"recording_transcription_id": "428c31b6-7af4-4bcb-b7f5-5013ef9657c1",
"status": "completed",
"transcription_text": "Hi!"
},
"record_type": "event"
}
}Response
The server must return an HTTP 200, otherwise we will reattempt delivery at the failover webhook URL.