Call
Deliver natural, human-like phone conversations at scale across your existing PBX and phone numbers. Perfect for inbound customer service, outbound sales, and 24/7 call answering without adding headcount.
Built for Telecom Operators, Contact Centers & MSPs
Turn any PBX extension into an AI Voice Agent
Deploy AI voice agents as SIP extensions on your existing PBX. Works with Asterisk, FreeSWITCH, 3CX, Cisco, Avaya, and any SIP-compatible phone system. Zero hardware changes, zero carrier swaps, zero downtime. Keep your phone numbers and infrastructure. Just add AI.
✓Works with all major PBXs·✓5-minute setup·✓Attended transfer to humans with full context
Overview
What is VoiceInfra?
PBX-native conversational AI platform built for telecom operators, contact centers, and MSPs.
Other AI Platforms
SIP Trunking Only
Connect via trunk, lose control
- Requires SBC reconfiguration and carrier changes
- Must port phone numbers to their platform
- Locked into one AI model and voice provider
- Complex setup with weeks of configuration
- Not designed for MSPs to resell
Traditional IVR
Touch-Tone Phone Trees
Menu hell for your callers
- Callers trapped in "Press 1 for sales" loops
- Zero conversation intelligence or context
- Cannot handle unexpected questions or edge cases
- Professional recording and scripting required
- No integration with CRM or business systems
VoiceInfra
PBX-Native AI Agents
Extensions, not replacements
- Register AI agents as extensions on 3CX, Yeastar, FreePBX, Avaya, Cisco, Mitel
- Keep your phone numbers, carriers, and contracts
- 5+ LLM providers and premium voices. Zero lock-in
- Deploy in 5 minutes. Point your PBX and go live
- Built for MSPs, Multi-Tenant, recurring revenue
Features
AI Agent Studio
Build, test, and deploy AI voice agents without writing a single line of code.
Measurable Outcomes
Real impact, from the phone line to the bottom line
Real capabilities that transform how businesses handle customer communications, no fake promises, just proven technology.
Your team handles high-value calls only
AI agents handle repetitive inquiries, scheduling, and routing. Your people focus on conversations that genuinely need human judgement.
Reach your entire lead list in hours
Run hundreds of concurrent outbound calls at telecom scale. What used to take weeks now happens before lunch.
Never lose a prospect to voicemail
Every inbound call answered instantly, 24/7/365. Stop losing revenue to unanswered phones while your competitors close your leads.
Your team talks to live prospects only
AI handles the dialing, qualifying, and screening. Your team joins only when a conversation is ready to close.
Round-the-clock customer support
AI agents handle inquiries, bookings, and troubleshooting while your team sleeps. No more after-hours missed opportunities.
Every call transcribed and synced to your CRM
Full transcripts, structured summaries, and automatic CRM logging from every conversation. Turn calls into a searchable revenue asset.
Enterprise Infrastructure You Can Rely On
Built on proven infrastructure used by leading enterprises worldwide
Calculate your potential savings with our subscription plans
SIP Integration Ready
Connect to your existing Cisco, Avaya, Mitel, or Asterisk PBX without replacement
MCP Tool Integration
Real-time execution with Microsoft Teams, Asana, Salesforce, and any external system via Model Context Protocol
Global Language Support
Handle customer conversations in multiple languages including Spanish, French, Arabic, and more
USE CASES
Build AI voice agents for your industry.
Real estate, healthcare, financial services, retail, hospitality, education, automotive, recruitment, government, and utilities. Deploy on your existing PBX and handle calls the way your business needs.
Industries
Real Estate
Healthcare
Retail & E-commerce
Financial Services
Hospitality & Travel
Education
Car Dealerships
Recruitment & HR
Government & Public
Utilities & Energy
Logistics & Delivery
Legal Services
Real Estate · Use case #1
Live
Post-Inspection Callback
Reconnect with viewers minutes after a showing to gauge interest, answer objections, and book the next step before momentum fades.
Live interest scoring
Instant re-booking
CRM sync
More calls VoiceInfra handles here
Rental Screening
Auction Invites
Lead Qualification
Open-House Reminders
Underbidder Follow-up
Tenant Check-ins
Settlement Coordination
PBX Integration
AI Voice Agents That Register as SIP Extensions on Your PBX
Register AI agents as standard SIP extensions on your PBX. Zero hardware changes, zero carrier swaps, zero downtime. Works with your existing call flows, IVR menus, and hunt groups.
SIP Extension
32612
TypeAI Voice Agent
StatusOnline
PBX3CX v20
LLMGPT-4o
Registers as a SIP extension
No trunk overlays, no SBC reconfiguration. Your PBX sees it as just another extension — but it answers with AI.
Incoming Call
AI Agent Answers
Capture Intent
Route or Transfer
Handles calls intelligently
Captures caller intent, answers questions, books appointments, and warm-transfers to humans with full conversation context.
Call Summary
- Caller
- +1 (555) 123-4567
- Intent
- Schedule appointment
- Outcome
- Booked — Tue 10:30am
- Next step
- Send confirmation SMS
Synced to CRM
Every call, captured
Structured summaries with caller, intent, outcome, and next steps. Full transcripts synced to your CRM automatically.
Channels
AI Voice Agents Across Every Communication Channel
Deploy your AI phone system on calls, chat, web, and API - all from a single PBX AI integration platform. Consistent AI voice agent experience whether your customers dial a SIP extension, message on WhatsApp, or click a widget on your website.
Chat
Deploy AI-powered conversations across WhatsApp Business and web chat experiences. Handle customer inquiries, schedule appointments, and qualify leads asynchronously with the same AI voice agent intelligence.
Web
Embed voice and chat directly on your site. Visitors start conversations instead of filling out forms. Capture leads, answer questions, and route to the right team member - all through an AI voice agent widget.
API
Build and orchestrate custom communication experiences through a flexible API. Integrate AI voice agents into your existing workflows, CRM, helpdesk, or proprietary applications with full programmatic control.
Customer Impact
Real results from real deployments
Telecom operators and MSPs are using VoiceInfra to automate calls, create new revenue streams, and replace support teams. No rip-and-replace required.
“We deployed 10 VoiceInfra AI agents on our Yeastar PBX and now run 500+ outbound calls daily with a 30%+ transfer rate across 5 languages. No hardware changes, no carrier switch.”
Spanish Telecom Operator
CNMC-Registered Provider
500+
Daily Outbound Calls
30%+
Transfer Rate
5
Languages
“We resell VoiceInfra AI voice agents on Enreach to our business customers across legal, asset management, and professional services. It created a new recurring revenue line for our MSP.”
30-Year Telecom MSP
Sydney, Australia
30+
Years in Telecom
New
Revenue Line
Zero
Infrastructure Changes
“We replaced our entire customer service team with VoiceInfra AI agents. They handle new leads, troubleshoot issues, report incidents, and transfer callers to the right extension. 99%+ answer rate.”
Telecom MSP
US-India Operations
99%+
Answer Rate
<3s
Response Time
24/7
Coverage
Pricing
Simple, transparent pricing
Every plan includes the full platform, all AI providers, PBX integration, and infrastructure. The difference is scale.
Launch
After-hours & solo operators
$49/mo175 min included
- 1 agent, 2 concurrent calls
- 1 voice clone, 3 knowledge bases
- PBX extension included
- Email support · 48h response
Most Popular
Starter
Small business with one agent
$99/mo350 min included
- 3 agents, 5 concurrent calls
- 1 voice clone, 7 knowledge bases
- PBX extension included
- Email support · 36h response
Professional
Growing with multiple agents
$249/mo900 min included
- 5 agents, 10 concurrent calls
- 3 voice clones, 15 knowledge bases
- PBX extension included
- Priority support · 24h response
Professional Plus
Scaling teams
$399/mo1,500 min included
- 7 agents, 15 concurrent calls
- 5 voice clones, 25 knowledge bases
- PBX extension included
- Priority support · 18h response
Enterprise
Need something custom?
Custom integrations, deployment support, voice design, and compliance work for complex teams.
All plans billed monthly. Additional minutes and concurrency available. View detailed pricing
Ready to deploy AI voice agents on your PBX?
Register your first AI agent as a SIP extension in 5 minutes. Keep your phone numbers, carriers, and infrastructure. Just add AI.