SIP-native voice agents for any PBX
Low-latency, locally-hosted voice agents that register over SIP like any extension. Private by design for HIPAA-sensitive deployments, with the technical control your team expects.
Free account. No credit card to get started.
Built for teams who care how it works
The details that matter when you put voice AI in front of real customers and regulated industries.
Low latency
Tight ASR → LLM → TTS turn timing for natural, interruptible conversations that feel human on a live call.
Local models, private by design
Run locally-hosted speech and language models so audio and PII stay in your environment — a practical fit for HIPAA-sensitive workloads.
SIP-native PBX integration
Registers as a standard SIP extension. Point any compliant PBX at it — no proprietary connectors, no vendor lock-in.
Call a demo agent from your browser
This is the exact browser-voice path your customers get on a phone call — ASR, LLM and TTS over the same pipeline. Click connect, allow your mic, and talk.
- Same voice pipeline as a live phone call.
- Low-latency, natural back-and-forth conversation.
- Runs in your browser — nothing to install.
Live demo coming soon
Our live in-browser agent is being prepared. Create a free account to launch your own agent and test it instantly.
Try it with a free accountAI Tool Marketplace
Extend Every Agent with Vetted Tools
Our AI Tool Marketplace offers a curated list of tools verified to extend the skills of the voice agents you add to your account. Tools are provided by VoxLayer and the community, vetted for utility, accuracy, and security. Resellers can also offer their own skillsets to other VoxLayer resellers and earn additional revenue on the platform.
- Vetted tools verified for utility, accuracy, and security.
- From VoxLayer and the community—extend any agent in your account.
- Sell your skillsets to other resellers and grow revenue on the platform.
- Popular CRM, PMS, and POS system integrations and much more
SIP-Native, PBX-Ready
Connect Like Any SIP Phone
Our voice agent registers over SIP as an internal extension. Open firewalls, point your PBX at it, and use the web UI—designed to feel like the admin interface of a SIP phone your team already knows.
Works with any SIP-compliant PBX. No vendor lock-in—use the hosted provider or platform you already resell.
Choose Voice & LLM, Add Your Tools
Quick Setup, Your Integrations
Pick voice and LLM providers in the UI and spin up a new agent in minutes. Add your own tools and integrations, or deploy with auto-provisioning: host XML configs on your existing SIP phone provisioning server so the agent configures at boot.
Select voice and LLM providers in the interface. No coding required to get a new voice agent live.
Any PBX, Any Provider, Worldwide
One Agent, Every SIP PBX
Our agent speaks standard SIP. It connects to any PBX that conforms to the protocol—no matter which hosted PBX provider you use or resell. The market is global: ITSPs and MSPs can offer voice AI to their customers everywhere.
SIP is the standard. No proprietary tie-in. Connect to any SIP-compliant PBX and switch providers if you need to.
Low latency
Tight turn timing for natural, interruptible conversations.
Local & private
Locally-hosted models keep audio and PII in your environment.
SIP connectivity
Register as an extension. Works with any SIP-compliant PBX.
SIP-phone-style UI
Web interface that feels like the SIP phone admin your team already uses.
Voice + LLM choice
Pick voice and LLM providers in the UI—no coding required.
Custom tools
Add your own tools and integrations for CRM, scheduling, and more.
Open API
Integrate with your provisioning, monitoring, and billing systems.
Auto-provisioning
XML configs on your provisioning server; agent configures at boot.
24/7 voice agent
Always-on receptionist: transfers, 3-way, paging on your PBX.
Multilingual
Support global customers with multiple languages and locales.
Any provider
Use with any hosted PBX you resell or support—market is worldwide.
Designed for VoIP resellers and managed service providers.
Designed for VoIP resellers and managed service providers.
Real Customer Reviews
See what ITSPs, MSPs, and VoIP providers say about running voice agents on their PBX with VoxLayer.
Pricing Details
Per agent channel. Each channel handles one concurrent call.
Selected options and models may incur additional monthly or annual costs.
VoxLayer Voice Agent
$ 99 /month
- One always-on agent, one concurrent call
- Lifelike voice, trained on your business
- Choose voice & LLM in the UI
- SIP registration as a PBX extension
- Access to the Tool Marketplace
- Plus model & tool usage fees
Join the VoxLayer Community
Connect with ITSPs, MSPs, and VoIP providers using VoxLayer. Share SIP and PBX setup tips, provisioning workflows, and voice agent best practices.
Frequently asked questions
Check out the full FAQ for more information about VoxLayer
Your Journey with VoxLayer Starts Here.
Deploy SIP-native voice agents, connect to any PBX, and offer receptionist-style AI to your customers. Built for ITSPs and MSPs worldwide.
Get Started with VoxLayer Now