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Vonage

Plug custom AI voices into Vonage Voice API flows. Build IVR, outbound notifications, and AI phone agents that sound human on every call.

How it works

YOUR APP
Vonage Call Flow
Inbound or outbound call routed through the Vonage Voice API
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RESEMBLE AI
Voice Synthesis
Custom AI voice generated in real-time with low latency
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YOUR APP
Deepfake detection
Audio on the call scanned for synthetic voice spoofing
OUTPUT
Caller experience
Branded, secure voice delivered on every Vonage call

Overview

Vonage powers programmable voice for thousands of enterprises worldwide. Resemble AI integrates with the Vonage Voice API to replace generic TTS with a custom, cloned, or branded voice — streaming audio directly into NCCO actions and SIP trunks with sub-second latency.

For security-sensitive call flows, Resemble Detect can analyze inbound audio to flag AI-cloned voices attempting to impersonate customers or executives, giving fraud teams a real-time signal on one of the most active attack surfaces in telephony.

Features

Custom voice cloning

Clone a brand, founder, or character voice and play it across every Vonage-powered call.

Streaming into NCCO

Return streaming audio to Vonage's talk and stream actions with end-to-end latency under 500ms.

Inbound deepfake detection

Analyze inbound call audio with Resemble Detect to surface AI-cloned voices before agents answer.

Multilingual call flows

Handle 90+ languages and accents from a single voice profile for global Vonage deployments.

Outbound campaign voice

Power appointment reminders, alerts, and surveys with dynamic TTS instead of rigid pre-recorded audio.

Regulated-industry ready

HIPAA, GDPR, and SOC 2 Type II (in progress) compliance allows safe use in financial services and healthcare call flows.

Use cases

  • Replace generic Vonage TTS in IVR menus with a branded voice clone
  • Build AI phone agents on Vonage that sound indistinguishable from a human rep
  • Detect voice-cloning fraud on inbound customer service calls
  • Launch outbound multilingual campaigns with one voice profile across regions
  • Stream dynamic SMS-to-voice flows for alerts and confirmations
  • Run HIPAA-compliant patient reminder calls with synthetic voice

Related integrations

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