--- title: Deepfake Detection for Voice Calls | Telnyx canonical: https://telnyx.com/products/deepfake-detection --- # Deepfake Detection for Voice Calls | Telnyx **DEEPFAKE DETECTION** # Detect AI generated calls Expose AI-generated voice fraud in real time. Powered by Resemble Detect via Telnyx programmable voice. [GET STARTED](https://telnyx.com/sign-up)[CONTACT US](https://telnyx.com/contact-us) WHY DEEPFAKE DETECTION ## Rebuild call trust that voice cloning broke A cloned voice can authorize a wire transfer or impersonate an executive on a live call. AI voice fraud is projected to reach $415B in losses by 2028\. Deepfake Detection catches synthetic voice at the network layer, on the same platform your calls already run on. [TALK TO AN EXPERT](https://telnyx.com/contact-us) * ### Catch fraud mid-call Detection returns a real or fake verdict in under 4 seconds, fast enough to interrupt a fraudulent transaction as it happens, not just record one for the post-mortem. * ### Built into the network Detection runs natively on the Telnyx voice pipeline, not behind three vendor hops. No middleware, no third-party routing. Just enable it on your call. * ### Compliance-ready by design The EU Data Act and EU AI Act require transparency around AI-generated content, and US legislation is moving the same way. Detection gives you a documented audit trail for flagging synthetic voice. FEATURES ## Real-time protection, built on carrier-grade infrastructure Built into the Telnyx Voice API, deepfake detection gives you real-time protection against AI-generated voice fraud. No extra infrastructure, no added latency. * Real-time frame-by-frame analysis Resemble Detect's neural model inspects audio frame by frame as the call happens, so even short inserted or altered segments are accurately flagged. * Verdict in under four seconds Detection returns a result fast enough to act on live. Interrupt the call, escalate, or route to a human before the fraud completes. * Voice API and TeXML Enable detection through the Voice API by adding the deepfake\_detection object to your Dial or Answer command, or use it with TeXML, whichever fits your stack. * Webhook-driven results Receive a call.deepfake\_detection.result webhook with a real / fake / silence\_timeout classification, a 0.0-1.0 probability score, and a consistency percentage across frames, ready to wire into your fraud logic. * Zero call impact Detection runs in the background while the call proceeds normally. No impact on call audio quality or latency for either party. * Network-layer protection Detection runs at the network layer on the same platform your calls already use. No third-party routing, no signal lost across vendor hops. DEEPFAKE DETECTION FOR DEVELOPERS ## Enable detection in a single API call Add the deepfake\_detection object to your Dial or Answer command and handle the webhook. Full reference and code samples in the developer docs. [Explore Dev Docs](https://developers.telnyx.com/docs/voice/programmable-voice/deepfake-detection) Enable on dial ``` POST https://api.telnyx.com/v2/calls { "connection_id": "uuid-of-your-connection", "to": "+18005551234", "from": "+18005554321", "deepfake_detection": { "enabled": true, "timeout": 15, "rtp_timeout": 30 }, "webhook_url": "https://www.example.com/webhooks" } ``` Enable on answer ``` POST https://api.telnyx.com/v2/calls/{call_control_id}/actions/answer { "deepfake_detection": { "enabled": true, "timeout": 20, "rtp_timeout": 30 } } ``` Handle the result ``` { "record_type": "event", "event_type": "call.deepfake_detection.result", "payload": { "result": "fake", // real | fake | silence_timeout "score": 0.97, // 0.0-1.0 probability AI-generated "consistency": 92, // % consistent across frames "call_control_id": "v3:..." } } ``` Handle errors ``` { "record_type": "event", "event_type": "call.deepfake_detection.error", "payload": { "error_message": "detection_timeout", // detection_timeout | rtp_timeout | // dfd_connection_error | dfd_stream_error "call_control_id": "v3:..." } } ``` Enable on dialEnable on answerHandle the resultHandle errors **RESOURCES** ## Everything you need to get started From your first API call to handling the webhook, these guides walk you through it. * ### Developer documentation Full API reference, parameters, and code examples for enabling deepfake detection on the Voice API and TeXML. [Learn more](https://developers.telnyx.com/docs/voice/programmable-voice/deepfake-detection) * ### Webhook reference Payload reference for detection results, including classifications, scoring, and signature verification. [Learn more](https://developers.telnyx.com/api-reference/callbacks/call-deepfake-detection-result) * ### Release note: Deepfake Detection Announcement and overview of deepfake detection with Resemble Detect. [Learn more](https://telnyx.com/release-notes/deepfake-detection) PRICING ## See our Deepfake Detection pricing Deepfake detection is available to every Telnyx account. No setup fees, no minimums. Just add the deepfake\_detection object to your Dial or Answer command, or enable it in TeXML. [SEE PRICING](https://telnyx.com/pricing/voice-api) $0.01per invocation ## Ready to detect deepfakes? From a single API call to a real-time verdict, Telnyx gives you carrier-layer deepfake detection built into the network your calls already run on. [GET STARTED](https://telnyx.com/sign-up)[CONTACT US](https://telnyx.com/contact-us) ## Ready to detect deepfakes? From a single API call to a real-time verdict, Telnyx gives you carrier-layer deepfake detection built into the network your calls already run on. [GET STARTED](https://telnyx.com/sign-up)[CONTACT US](https://telnyx.com/contact-us) ## FAQ ### What is deepfake detection? A real-time service that analyzes call audio to determine whether a voice is a real human or AI-generated. Telnyx uses Resemble Detect, a neural model that inspects audio frame by frame to flag synthetic or modified speech. ### How do I enable it? ### How fast are results? ### What results can I receive? ### Does it affect call quality or latency? ### How much does it cost? [Start building](https://telnyx.com/sign-up)