Documentation Index
Fetch the complete documentation index at: https://docs.vobiz.ai/llms.txt
Use this file to discover all available pages before exploring further.
Welcome to Vobiz
Vobiz is a developer-first telephony platform - SIP trunking, voice APIs, and real-time audio streaming built for AI voice agents and modern communications.Quick Start
Make your first call in under 5 minutes.
Build an AI Voice Agent
Connect SIP to Vapi, Retell AI, ElevenLabs, or Pipecat.
API Reference
Full REST API documentation - accounts, numbers, calls, recordings, and more.
Error Handling
Understand error codes and how to handle them gracefully.
Core APIs
Account & Balance
Manage your Vobiz account, check balance, and retrieve credentials.
Phone Numbers
List, purchase, and manage DID numbers.
Sub-Accounts
Isolate usage and billing per customer or environment.
Call Management
Make, transfer, and control live calls via REST API.
SIP Trunking
Provision trunks, credentials, IP ACLs, and origination URIs.
Voice XML
Script call flows with Vobiz XML elements.
Voice AI Integrations
Connect Vobiz SIP trunking with leading AI voice platforms.VAPI
Dashboard and API setup for VAPI.
Retell AI
Dashboard and API setup for Retell AI.
ElevenLabs
Dashboard and API setup for ElevenLabs.
LiveKit
Real-time audio streaming with LiveKit.
Pipecat
Python voice AI pipelines with Pipecat.
Bolna.ai
Conversational AI with Bolna.
Ultravox
Low-latency voice AI with Ultravox.
OpenAI Realtime
OpenAI Realtime API over WebSockets.
Resources
Core Concepts
SIP trunking, WebSockets, callbacks, and more.
Best Practices
Number utilization, DLT registration, and capacity planning.
FAQ
Common questions about concurrency, CPS, integrations, and more.