Overview
Make outbound calls from LiveKit rooms to phone numbers using SIP providers. Pass trunk configuration inline with each call or use a stored outbound trunk. Create SIP participants and set up workflows to initiate calls and connect participants with external phone numbers.
Making calls components
Set up outbound call handling with trunks, SIP participant creation, and call configuration.
| Component | Description | Use cases |
|---|---|---|
| Workflow & setup | Overview of the outbound call workflow, from creating a SIP participant to connecting to external phone numbers and routing to rooms. | Understanding outbound call flow, setting up outbound call handling, and learning how SIP participants initiate calls. |
| Outbound trunk | Store reusable outbound trunk configuration for making outgoing calls through SIP providers. You can also pass trunk configuration inline with each call instead of creating a stored trunk. | Reusing trunk configuration across calls, configuring trunk authentication, and setting up region pinning for outbound calls. |
| Outbound calls | Create SIP participants to make outbound calls, configure call settings, and connect participants to external phone numbers. | Initiating outbound calls, creating SIP participants programmatically, and connecting agents to phone numbers. |
| Answering machine detection | Classify whether an outbound call reaches a person, voicemail, IVR, or unavailable line so your agent can respond accordingly. | Outbound voice agents, voicemail handling, and bypassing automated systems. |
In this section
Read more about making calls.
Workflow & setup
Overview of the outbound call workflow and setup process.
Outbound trunk
Store reusable outbound trunk configuration for outgoing calls.
Outbound calls
Create SIP participants to make outbound calls.
Answering machine detection
Detect whether a person, voicemail, or IVR system answered an outbound call.