Connect Vonage to ElevenLabs Conversational AI Voice Agents

Real-Time Voice Streaming

• WebSocket-based bidirectional audio streaming with sub-second latency
• Supports 16kHz PCM audio format optimized for voice AI processing
• Maintains natural conversation flow without awkward delays that break user experience

Zero Infrastructure Changes

• Use your existing Vonage phone numbers, SIP trunks, and WebRTC clients
• No new hardware, phone numbers, or infrastructure modifications required
• Preserve your current call routing, recording, and telephony workflows

Enterprise-Grade Reliability

• Built on enterprise SLA with high availability and automatic failover
• GDPR compliant with end-to-end encryption over secure WebSocket (WSS)
• Supports high call volumes with automatic scaling capabilities

Developer-Friendly Integration

• Pre-built WebSocket connector with simple configuration
• RESTful APIs for call control, monitoring, and analytics
• Comprehensive documentation with code examples and best practices

Flexible Call Handling

• Support for both inbound and outbound call scenarios
• Seamless transfer to human agents when needed with full context preservation
• Compatible with PSTN, SIP trunk, and WebRTC call types

Step 1: Get ElevenLabs Credentials

1. Navigate to ElevenLabs dashboard and click My Account
2. Select API Keys and copy your API key
3. Go to Conversational AI dashboard and select your agent
4. Click Settings and select Copy Agent ID
5. Save both credentials for configuration

Step 2: Configure WebSocket Connector

1. Clone the connector repository from GitHub
2. Navigate to the connector directory
3. Create environment configuration file from template
4. Add your ElevenLabs API key and Agent ID
5. Install required dependencies

Step 3: Deploy Connector

Local Development

• Use ngrok to expose local port 6000
• Note the public forwarding URL (without https://)
• Start the connector application

Production Deployment

• Deploy to cloud hosting provider (AWS, Azure, Vonage Cloud Runtime)
• Ensure public HTTPS endpoint with SSL certificate
• Configure firewall for WebSocket traffic
• Note your production hostname

Step 4: Configure Vonage Application

1. Access Vonage dashboard and create or update Voice Application
2. Set WebSocket endpoint to: wss://YOUR_CONNECTOR_HOSTNAME/socket
3. Configure answer URL to point to your application
4. Set content-type to audio/l16;rate=16000
5. Add required query parameters (peer_uuid, webhook_url)

Step 5: Test Integration

1. Start the connector application
2. Make an inbound call to your Vonage number
3. Verify connection to ElevenLabs agent
4. Test audio quality and conversation flow
5. Check event handling and interruption management