Telephony + AI Platform

AI Voice Agents That Handle Real Phone Calls

Deploy AI-powered voice agents for inbound and outbound calls. Qualify leads, answer customer inquiries, book appointments, and transfer hot prospects to human agents.

Human-like conversations
Real SIP & PSTN connectivity
Human handoff
Works with existing PBX systems
Book a Live Demo Talk to an AI Agent
Real-Time Audio Stream Flow SIP WebSocket
Caller Inbound/Outbound Call
SIP/PSTN Gateway Telephone Carriers
NGS
NextGenSwitch Platform Telephony & AI Orchestrator
AI Voice Agent LLM + TTS/STT
Human Agent Optional Handoff

Trusted Telephony Infrastructure

Trusted Voice Infrastructure for AI-Powered Communications

NextGenSwitch provides the proven foundation of voice APIs, enterprise PBX systems, campaigns, and contact center capabilities that bridges AI platforms directly with the global telephone network.

Virtual PBX
Contact Center
Call Campaigns
AI Assistants
Voice API

The Challenge

Most Businesses Lose Opportunities Before a Human Answers

Traditional call centers struggle to match modern buyer expectations, leading to missed deals and frustrated customers.

Missed Calls

Leads go cold after hours when staff aren't available to answer.

Slow Follow-Up

Prospects lose interest while waiting hours or days for a callback.

High Staffing Costs

Growing call volume requires hiring more agents to prevent hold queues.

Inconsistent Experience

Customer support quality varies widely between different agents and shifts.

The Solution

Meet Your AI Voice Workforce

AI agents answer calls instantly, understand natural speech, perform business tasks, and transfer conversations when human expertise is required.

Natural conversations

Understands human speech, pauses, and context for authentic interactions.

Appointment scheduling

Natively links with Calendly, Google Calendar, and CRMs to book meetings live.

Lead qualification

Asks qualifying questions and scores leads dynamically based on replies.

FAQ answering

Answers business questions instantly by pulling from your knowledge base.

CRM integration

Updates Salesforce, HubSpot, or custom databases automatically post-call.

Human transfer

Transfers hot prospects or complex cases instantly to available human agents.

Multilingual support

Talks and understands customers in over 100 languages with instant detection.

24/7 availability

Handles thousands of concurrent calls instantly without queue holds or sleep.

Use Cases

AI Voice Agents Tailored for Any Role

Deploy automated calling workflows customized to specific business operations.

AI Receptionist

Answer inbound routing calls, transfer to departments, take messages, and filter out spam 24/7.

AI Cold Caller

Call cold or warm outreach leads automatically, spark interest, verify details, and route warm transfers.

AI Appointment Setter

Initiate calls or handle callbacks to book calendar slots, reschedule conflicts, and trigger reminders.

AI Customer Support Agent

Answer high-frequency support questions, handle password resets, check shipping status, or escalate complex tickets.

AI Lead Qualification Agent

Engage web inbound form sign-ups within seconds, ask key qualification questions, and schedule sales calls.

AI Survey & Follow-Up

Gather post-service review responses, run NPS campaigns, and send friendly account status updates automatically.

The NextGenSwitch Edge

More Than an AI Voice Agent Platform

Unlike platforms that only build AI prompt flows, NextGenSwitch acts as the real-time bridge between AI systems and raw telephony infrastructure. Stream call audio directly to AI engines while maintaining complete control over your PBX, SIP connections, and routing rules.

Feature Typical Voice AI Platform NextGenSwitch Platform
AI Conversations ✓ Supported ✓ Supported
SIP Connectivity Limited / Third-party only ✓ Native Carrier SIP Trunks
PSTN Support Limited / High-markup numbers ✓ Connect Any Global Carrier
PBX Integration Limited / API only ✓ Direct Asterisk/FreeSWITCH Interconnect
Contact Center Features ✗ No (requires manual routing) ✓ Built-in agent queues & wallboards
Outbound Call Campaigns ✗ No (API triggers only) ✓ Native mass broadcast & auto-dialers
Voice API access ✗ No API controls ✓ Programmable XML verbs (<STREAM>, <SAY>)
White-Label Branding Limited / Enterprise plan only ✓ Complete multi-tenant reseller panel
VICIdial Integration ✗ Rare / Custom coding required ✓ Proven Asterisk & VICIdial pathways

Industries

Designed for Industries that Run on Voice

NextGenSwitch powers high-performing voice workflows in key business verticals.

Real Estate

Follow up instantly with web leads, pre-qualify buyers, and set showing schedules.

Insurance

Automate policy quotes, run renewal notifications, and qualify claim requests.

Solar

Qualify homeowners by asking electrical bill details and booking roof survey sessions.

Healthcare

Book appointments, verify prescription renewals, and send vaccine slot notifications.

E-commerce

Handle order delivery questions, manage return processes, and coordinate cart saves.

BPO & Call Centers

Scale call agents with hybrid workflows, frontloading qualifications to AI workers.

Telecom Providers

Deploy value-added AI services, host multi-tenant SIP PBX environments, and sell voice APIs.

SaaS Companies

Add phone numbers to your software, route customer accounts, and build voice flows via API.

Live Sandbox Simulation

Experience an AI Voice Agent

Test how our AI voice agents handle conversation logic, respond instantly, and run task integrations over the phone.

1. Select Scenario

Ready

2. Live Transcript 00:00

Click "Start Call Simulation" to begin a real-time conversational demonstration.

Integrations

Works With Your Existing Infrastructure

NextGenSwitch supports native integration with leading PBX software, global SIP trunks, CRM systems, and standard AI services, keeping your workflows unified.

Telephony & Infrastructure
Asterisk
FreeSWITCH
VICIdial
SIP Trunks
CRM API
AI Models & Speech Infrastructure
OpenAI
Gemini
Deepgram
ElevenLabs

Pricing Preview

Enterprise-Grade Capabilities, Scale-Friendly Licensing

Starter

For small businesses testing conversational AI

  • 1 Inbound AI Assistant
  • 10 Concurrent Channels
  • Basic Webhook API Logs
  • Email Support
Contact Sales
POPULAR

Growth

For growing teams launching call campaigns

  • Unlimited AI Voice Agents
  • Up to 100 Concurrent Channels
  • Advanced Campaign Manager
  • Bidirectional Audio <STREAM>
  • Priority Slack/Email Support
Contact Sales

Enterprise

For large call centers and telecom providers

  • Custom Call Flow Orchestrations
  • 1,000+ Concurrent Channels
  • White-Label Multi-Tenant Panels
  • Asterisk / VICIdial direct trunking
  • 24/7 Phone SLA Support
Contact Sales

FAQ

Frequently Asked Questions

Technical answers regarding NextGenSwitch's AI Voice capabilities.

What is an AI voice agent?

An AI voice agent is an autonomous conversational system powered by large language models (LLMs) and advanced speech recognition and synthesis. It can interact with callers over real telephone networks, understand spoken intent, execute tasks, and converse naturally in real-time.

Yes, NextGenSwitch connects AI voice agents directly to real-world phone networks using SIP and PSTN connectivity. Your AI voice agents can answer incoming business calls or execute automated outbound calling campaigns.

Absolutely. NextGenSwitch acts as the gateway between AI systems and telecom infrastructure. It natively supports SIP trunks, enabling you to link your existing carrier or telephone provider directly to the AI voice workforce.

Yes. NextGenSwitch supports intelligent human handoff. If the AI agent detects a request to speak to a human or encounters an unresolved complex query, it can execute a SIP transfer or direct signaling to route the call back to a human agent, virtual PBX queue, or contact center.

Yes. NextGenSwitch provides outbound calling capabilities. You can initiate outbound calls programmatically via our voice APIs, or run mass call campaigns (e.g., for lead qualification, surveys, or appointment reminders) where the AI agent speaks directly with recipients.

Yes. NextGenSwitch is specifically designed to work with call center infrastructure like VICIdial, Asterisk, and FreeSWITCH. This allows you to front-load campaigns with AI agents for qualification, and transfer only hot prospects to your VICIdial human agents.

Yes. NextGenSwitch is LLM-agnostic. You can stream call audio to OpenAI, Google Gemini, Anthropic Claude, or your own self-hosted large language models depending on your compliance, latency, and cost needs.

Yes. NextGenSwitch streams real-time audio bidirectionally over WebSockets, allowing you to plug in any Speech-to-Text (STT) and Text-to-Speech (TTS) vendors, such as Deepgram, ElevenLabs, Play.ht, or Google Cloud Speech.

Yes. Since you can choose your own speech-to-text and translation layers, you can build AI voice agents that speak and understand over 100 languages, with automated language detection during live calls.

You can launch a test environment in minutes using our one-click DigitalOcean marketplace deployment or self-hosted guides. Custom production-ready voice agent integrations can be deployed within days.

Book a Live Demo

Let's Integrate AI With Your Telephony

Connect with our system architects. We will help you scope hardware requirements, select models/latency stacks, and interface with your existing Asterisk, VICIdial, or SIP trunks.

Enterprise Compliance

Self-host NextGenSwitch to keep all call recordings and transcripts on your network.

Infrastructure Scoping

Get exact VM specifications for hosting high-throughput bidirectional WebSockets.

Request a Consultation & Live Demo

Launch Your AI Voice Agent This Week

Whether you need an AI receptionist, AI cold caller, AI appointment setter, or a fully automated AI contact center, NextGenSwitch provides the infrastructure and AI integration tools to get started quickly.

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AI Voice Agents for Phone Calls Deploy on SIP & PSTN networks
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