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

# Phone Integration

> Connect voice agents to phone systems with seamless telephony integration

## Overview

ThreeTone's Phone Integration system provides robust telephony capabilities:

* Inbound and outbound call handling
* Phone number management
* Call routing and distribution
* Real-time call monitoring
* Integration with existing phone systems

## Key Features

### Call Management

Handle both inbound and outbound calls with intelligent routing, queue management, and escalation capabilities.

### Phone Number Provisioning

Manage phone numbers, assign them to agents, and configure call routing rules for optimal call distribution.

### System Integration

Integrate with existing PBX systems, SIP trunks, and telephony providers for seamless operation.

### Call Analytics

Comprehensive call analytics including duration, quality metrics, and conversation outcomes.

## Supported Integrations

* **SIP Trunks**: Direct SIP integration for enterprise systems
* **Cloud Telephony**: Integration with major cloud telephony providers
* **PBX Systems**: Traditional and modern PBX system compatibility
* **WebRTC**: Browser-based calling capabilities

## Call Flow Management

* **Intelligent Routing**: Route calls based on agent availability and expertise
* **Queue Management**: Handle call queues with estimated wait times
* **Escalation Rules**: Automatic escalation to human agents when needed
* **Call Recording**: Automatic call recording for compliance and quality

## Getting Started

Learn how to set up phone integration in our [Developer Guides](/guides/phone-integration/setup).