> ## Documentation Index
> Fetch the complete documentation index at: https://koreai.mintlify.app/llms.txt
> Use this file to discover all available pages before exploring further.

# SIP Trunk

<Badge icon="arrow-left" color="gray">[Back to Voice Gateway Advanced Configuration](/ai-for-service/channels#advanced-configuration)</Badge>

The SIP (Session Initiation Protocol) Trunk feature lets you define how to redirect or transfer calls between different endpoints in your phone system.

## Configure SIP Trunk

You can configure SIP trunk to enable seamless call routing between systems using SIP protocols for efficient voice communication. .

### Transfer a Call to Contact Center Using SIP Trunk

You can set up a dedicated number or SIP to transfer calls to a voice agent.