Concepts
Learn core concepts and architectural patterns that power Vobiz telephony services. Understand how different components work together to build robust communication systems.
What You'll Learn
- How SIP signaling and RTP media work — the full protocol mechanics, not just the surface
- How Voice XML WebSocket streaming connects phone calls directly to your AI pipeline
- When to choose SIP (LiveKit, VAPI, Retell, call transfer) vs. WebSockets (Pipecat, direct Python, cost optimization)
- How callbacks and webhooks enable real-time event notifications for call lifecycle events
- Configuration patterns for callback URLs, authentication, and hierarchy
Available Concepts
SIP Trunking
How SIP actually works — the full INVITE→RTP message flow, signaling vs. media separation, codec negotiation, and how LiveKit, VAPI, Retell AI, and ElevenLabs each use SIP. Includes 10 real developer pitfalls.
Streaming WebSockets
How Voice XML audio streaming works — WebSocket message types, G.711 µ-law encoding, the full audio conversion pipeline, Pipecat architecture, and direct Python integration with Vobiz.
SIP vs WebSockets
The definitive comparison — full decision matrix (10 factors), platform compatibility table, real cost numbers, latency breakdown, scaling trade-offs, and a 4-question decision flowchart.
Callbacks
Understand how callbacks and webhooks work in Vobiz. Learn about callback URLs, event notifications, and real-time communication patterns.
Callback Configurations
Configure callback endpoints for your applications. Set up URL endpoints, handle authentication, and manage callback parameters.