Meet Eleven Music. Make the perfect song for any moment.

Learn more

Connect SIP Trunking to ElevenLabs Conversational AI Voice Agents

Bridge your existing telephony infrastructure with our real-time Conversational AI platform for seamless voice agent deployment

Setup time

10-15mins

Difficulty

Intermediate

Category

Telephony

Type

First Party

Let your AI Voice Agents handle calls through your existing phone infrastructure

  • SIP trunking integration enables you to connect your current telephony system directly to ElevenLabs' Conversational AI platform without replacing your phone infrastructure
  • Deploy real-time AI voice agents that can handle both inbound and outbound calls through your existing PBX or SIP-enabled network
  • Scale voice interactions without scaling headcount while maintaining enterprise-grade security and reliability
  • Seamlessly integrate with your current call routing and phone numbers - no hardware changes required
  • Perfect for developer-led platforms building conversational layers for customers, employees, or users

Features

Integrations features

Powerful capabilities for developer-focused AI agent platforms prioritizing low latency, control, and seamless integration

  • Direct Infrastructure Integration
    • Connect your existing PBX or SIP phone system directly to ElevenLabs' voice AI platform
    • No need for separate hardware or complex call routing modifications
    • Preserve your established call flows, phone numbers, and network configuration
    • Developer-friendly API integration with standard SIP protocols your telephony team already understands
  • Real-Time Bidirectional Calling
    • Handle both inbound customer calls and outbound AI-initiated calls intelligently
    • Ultra-low latency performance optimized for real-time voice interactions
    • Automatic call routing to AI agents without infrastructure changes
    • Seamless call transfers between AI agents and human representatives when needed
  • Enterprise-Grade Security & Compliance
    • Encrypted TLS transport for all call signaling and setup messages
    • SRTP media encryption for secure voice content transmission
    • Robust authentication via credentials or IP allowlist (ACL) configurations
    • HIPAA-eligible deployment options with Business Associate Agreement support
  • Advanced AI Voice Capabilities
    • Industry-leading text-to-speech with ultra-realistic voice generation
    • Integrated speech recognition and natural language understanding
    • Context-aware conversations with interruption handling
    • Function calling capabilities for backend system integration
  • Developer-Centric Configuration
    • Straightforward SIP trunk registration through ElevenLabs dashboard
    • RESTful APIs for programmatic agent and trunk management
    • Comprehensive webhook support for call events and analytics
    • Flexible voice selection including voice cloning capabilities

Installation

Installation guides

Quick deployment guide for connecting your telephony infrastructure to ElevenLabs AI platform

  • SIP Trunk Registration
    • Access ElevenLabs dashboard and navigate to Phone Numbers section
    • Register your SIP trunk details (SIP URI, authentication credentials)
    • Configure origination and termination endpoints
    • Assign trunk to specific AI agents or phone numbers
  • Authentication Setup
    • Configure digest authentication with username/password credentials
    • Alternative: Set up IP allowlist (ACL) for IP-based authentication
    • Test authentication connectivity between your system and ElevenLabs platform
  • Call Routing Configuration
    • Define inbound call handling rules for AI agent assignment
    • Set up outbound calling parameters and caller ID settings
    • Configure failover and redundancy options if available

Troubleshooting

Troubleshooting & support

Common configuration issues and solutions for SIP trunking integration

Contact support

The most realistic voice AI platform

Background lines