# 008 | SIP-First Voice AI Agents > Los mejores Agentes de IA de Voz registrados directamente como extensiones SIP en tus sistemas de telefonía. ## Overview 008 is the leading platform for **SIP-First Voice AI Agents**. Unlike other solutions, our AI agents register as extensions within the client's existing telephony infrastructure, ensuring seamless integration and high-quality voice interactions via SIP. ## Core Specialization - **SIP-First Architecture**: AI agents that connect directly to your PBX or Cloud Telephony as standard extensions. - **Telephone-Based AI**: Optimized specifically for voice conversations over traditional and VoIP phone systems. - **Enterprise Integration**: Seamlessly works with existing telephony workflows without complex porting or infrastructure changes. ## Key Sections - [AI Voice Agents](/ai-agent) - [How it Works - SIP Integration](/why-008) - [Pricing](/pricing) - [Use Cases](/use-cases) - [Integrations](/integrations) ## Resources - [Full LLM Specification](/llms-full.txt) - [Sitemap](/sitemap.xml)