Add AI voice agents to your VitalPBX phone line using Cartesia. Self-host SIP4AI, configure your credentials, and let AI handle calls in minutes.
Modern open-source PBX with intuitive interface and strong community.
Ultra-low latency voice AI optimized for real-time conversational applications.
Download and install SIP4AI on your server or local machine.
# Install SIP4AI
curl -sSL https://sip4ai.com/install.sh | bash
Create a PJSIP extension for SIP4AI in VitalPBX admin panel.
# Set VitalPBX credentials
export SIP_SERVER=vitalpbx.sip-provider.com
export SIP_USERNAME=your_username
export SIP_PASSWORD=your_password
Requires Cartesia API key. Best-in-class latency for voice apps.
# Set Cartesia API key
export CARTESIA_API_KEY=your_api_key
Run SIP4AI with your VitalPBX and Cartesia configuration.
# Start SIP4AI with cartesia provider
sip4ai --provider cartesia
# SIP4AI will register with VitalPBX and wait for calls
INFO Registering with SIP server...
INFO Connected to Cartesia API
INFO Ready to handle calls
Get started with SIP4AI today. Free for non-commercial use, affordable plans for businesses.