# Active Call Documentation (English)
Welcome to the Active Call English documentation hub.
## π Documentation Index
### Getting Started
- **[Configuration Guide](./config_guide.md)** β Complete guide for configuring Active Call with different calling scenarios
### Core Concepts
- **[API Documentation](../api.md)** β Full WebSocket API reference (commands, events, REST endpoints)
- **[Playbook Tutorial](./playbook_tutorial.md)** β Learn how to build stateful voice agents with Playbook
- **[Playbook Advanced Features](./playbook_advanced_features.md)** β Advanced Playbook capabilities
- **[Template Syntax Comparison](./template_syntax_comparison.md)** β Template syntax explanation and comparison
### Architecture & Integration
- **[A Decoupled Architecture for AI Voice Agent](./architecture.md)** β System architecture overview
- **[VoiceAgent Integration with Telephony Networks](./webrtc_sip.md)** β Technical implementation details
### Carrier Integration
- **[Twilio Elastic SIP Trunking](../twilio_integration.md)** β Connect active-call to Twilio (TLS + SRTP)
- **[Telnyx SIP Trunking](../telnyx_integration.md)** β Connect active-call to Telnyx
### Advanced Features
- **[Emotion Resonance](./features/emotion_resonance.md)** β Real-time emotional response system
- **[HTTP Tool Integration](./features/http_tool.md)** β External API integration via function calling
- **[Intent Clarification](./features/intent_clarification.md)** β Advanced intent detection and clarification
- **[Voice Emotion](./features/voice_emotion.md)** β Voice emotion analysis and synthesis
- **[Rolling Summary](./features/rolling_summary.md)** β Conversation context rolling summary
- **[Context Repair](./features/context_repair.md)** β Context repair and completion
- **[Tool Instructions](./features/tool_instructions.md)** β Tool usage instructions
- **[Context Management](./features/context_management.md)** β Conversation context management
## π Quick Start by Scenario
### Scenario 1: Browser-based Voice Chat (WebRTC)
β See [Configuration Guide - WebRTC Scenario](./config_guide.md)
*(Note: Requires HTTPS or 127.0.0.1)*
### Scenario 2: Telephony Integration (SIP)
β See [Configuration Guide - SIP Scenario](./config_guide.md)
### Scenario 3: Custom Application Integration (WebSocket)
β See [Configuration Guide - WebSocket Scenario](./config_guide.md)
### Scenario 4: Inbound Call Handling (SIP Registration)
β See [Configuration Guide - SIP Inbound](./config_guide.md)
## π Additional Resources
- [Example Playbooks](../../config/playbook/) β Ready-to-use playbook examples
- [Example Code](../../examples/) β Sample implementations and utilities
- [δΈζζζ‘£](../zh/README.md) β Chinese Documentation