# VEXYL AI ## Posts - [Self-Hosted Indian Language STT Server - VEXYL-STT Open Source](https://vexyl.ai/self-hosted-indian-language-stt-server-vexyl-stt-open-source/): If you’ve ever tried to add self-hosted Indian language speech to text to a production system, you know the problem. Cloud STT APIs either don’t support Indian languages well, charge per-minute fees that kill your margins, or send audio to servers in the US — which is a non-starter for healthcare and government use cases. We built VEXYL-STT to fix this, and today we’re releasing it as open source. VEXYL-STT is a free, self-hosted speech-to-text server wrapping AI4Bharat’s IndicConformer 600M multilingual model. It supports 14 Indian languages, runs on CPU (no GPU required for typical workloads), and exposes both a […] - [Voice AI cost in India - Real Data from a Live Deployment](https://vexyl.ai/voice-ai-cost-in-india-real-data-from-a-live-deployment/): What does voice AI cost per minute in India when you’re running real production traffic — not a demo, not a sandbox, but live patient interactions at a hospital? In February 2026, VEXYL AI Voice Gateway processed 156 calls and 248 minutes of Malayalam conversations at a tertiary care hospital in Kerala. The total AI cost: ₹205.88. That’s ₹0.83 per minute, all-in — STT, LLM, and TTS combined. Cloud platforms like Vapi would have billed over ₹1,780 for the same traffic. This post breaks down exactly how we got there, what the numbers look like in production, and why the […] - [VEXYL AI as FreePBX AI Agent - Transform Your PBX in Minutes](https://vexyl.ai/vexyl-ai-as-freepbx-ai-agent-transform-your-pbx-in-minutes/): If you’re running a FreePBX or Asterisk system and watching cloud AI voice platforms charge ₹13-₹35 per minute whilst your existing infrastructure sits underutilised, you’re not alone. VEXYL AI as FreePBX AI agent transforms your traditional phone system into an intelligent conversational AI hub without ripping out what already works. Here’s how enterprises are achieving 90% cost savings and sub-200ms response times whilst maintaining complete data sovereignty. Why Does Your FreePBX System Need an AI Agent? Traditional IVR menus (“Press 1 for Sales, Press 2 for Support”) frustrate modern customers who expect natural conversations. But replacing your entire FreePBX infrastructure […] - [Custom LLM Integration Guide for Voice AI Systems](https://vexyl.ai/custom-llm-integration-guide-for-voice-ai-systems/): Integrating a custom LLM with your voice AI system doesn’t have to be complicated. Whether you’re running proprietary AI models, self-hosted LLMs, or want to connect OpenAI, Gemini, or Claude to your telephony infrastructure, custom LLM integration provides the flexibility you need. This comprehensive guide shows you exactly how to implement custom LLM integration with the VEXYL AI Voice Gateway, enabling you to connect any HTTP-based chat API to your voice system in minutes. For enterprises requiring data sovereignty, regional language support, or specific AI capabilities, custom integration offers unmatched control. You can use your organisation’s fine-tuned models, maintain BYOK […] - [ElevenLabs TTS Latency Test 2026 Real-World Results](https://vexyl.ai/elevenlabs-tts-latency-test-2026-real-world-results/): When building real-time voice AI applications, ElevenLabs TTS latency can make or break your user experience. After extensive testing from India in January 2026, we’ve discovered that achieving sub-500ms time-to-first-byte (TTFB) is possible with the right configuration. This comprehensive guide shares our real-world latency test results in milliseconds, complete test scripts you can run yourself, and practical integration strategies for voice gateway platforms like VEXYL AI Voice Gateway. What is TTS Latency and Why Does It Matter? TTS latency refers to the delay between sending text to a text-to-speech API and receiving the first audio bytes that can be played […] - [AI Calling Platforms 2026 - Investment Analysis & Platform Comparison](https://vexyl.ai/ai-calling-platforms-2026-investment-analysis-platform-comparison/): The AI calling platforms market has evolved from speculative novelty to mission-critical enterprise infrastructure. As we enter 2026, organisations face a pivotal decision: which voice AI platform delivers genuine operational value versus riding the hype cycle? This comprehensive analysis examines the technological maturity, investment viability, and platform capabilities defining the $41.39 billion conversational AI market. With enterprises across healthcare, financial services, and customer support achieving 50-80% call deflection rates and operational cost reductions of 30-40%, the question isn’t whether to adopt voice AI, but rather which architectural approach—cloud-native orchestration, proprietary end-to-end platforms, or self-hosted middleware—aligns with your sovereignty, cost, and […] - [VEXYL Voice Gateway AI Asterisk/FreePBX Integration - Self-Hosted](https://vexyl.ai/vexyl-voice-gateway-ai-asterisk-freepbx-integration-self-hosted/): If you’re running an Asterisk or FreePBX phone system, you’ve probably wondered how to add AI voice capabilities without tearing everything down and starting fresh. Cloud platforms like Vapi and Retell AI charge ₹4,500-₹12,000 per month for just 30,000 minutes. That’s insane when you already have working infrastructure. Enter VEXYL AI Voice Gateway—a self-hosted solution that bridges your existing Asterisk PBX to modern AI services. Think of it as middleware that adds speech recognition, natural language processing, and text-to-speech to your phone system without replacing anything. And it runs entirely on your servers via Docker. I’ll show you exactly how […] - [AI Voice Gateway for Asterisk a Complete 2025 Setup Guide](https://vexyl.ai/ai-voice-gateway-for-asterisk-a-complete-2025-setup-guide/): Last month, a healthcare CIO told me his biggest frustration: “We’re paying $10,500 monthly to a cloud voice AI platform, and we don’t even own our patient call data.” His IT team spent six months evaluating alternatives, and what they discovered changed everything. The solution? An AI Voice Gateway for Asterisk that runs entirely on their infrastructure. Now they’re paying just $520 monthly for the same volume of calls, with complete control over their data. I’ll show you exactly how this works. What Is an AI Voice Gateway for Asterisk? An AI Voice Gateway for Asterisk is middleware software that […] - [How VEXYL AI Simplifies n8n Voice AI Workflows](https://vexyl.ai/vexyl-ai-n8n-voice-ai-workflow-automation/): Building real-time voice AI workflows with n8n has traditionally required months of development and deep telephony expertise.VEXYL AI Voice Gateway changes n8n Voice AI Workflows equation entirely. As someone who’s worked with enterprise voice systems across Indian healthcare sector, I can tell you that VEXYL simplifies n8n voice AI integration from a 3-6 month project down to just 1-2 weeks. It’s a game-changer for organisations seeking self-hosted voice automation without the complexity. What Makes Voice AI Integration with n8n So Challenging? n8n is brilliant at connecting different services and automating complex workflows. But voice AI introduces unique technical challenges that […] - [FCC SIP 603+ Compliance Mandate - How AI Voice Platforms Must Adapt by March 2026](https://vexyl.ai/fcc-sip-603-compliance-mandate-how-ai-voice-platforms-must-adapt-by-march-2026/): The SIP 603+ compliance mandate takes effect March 2026. Learn how this critical call blocking notification requirement affects AI voice platforms and VEXYL's compliance strategy. - [Voice AI Gateway Architecture The Complete Enterprise Guide](https://vexyl.ai/voice-ai-gateway-architecture-the-complete-enterprise-guide/): If you’ve ever wondered how modern voice AI gateway architecture actually works—how a spoken question transforms into an intelligent response in under a second—you’re not alone. The enterprise world is rapidly embracing voice as the primary interface for AI interaction, yet only 21% of organisations report being truly satisfied with their current voice systems. The gap between what’s possible and what’s being delivered represents an enormous opportunity. I’ve spent considerable time building and optimising voice AI systems, and I can tell you that the magic isn’t in any single component. It’s in how the architecture brings everything together—telephony, speech recognition, […] - [Reducing Latency in Real-Time Speech Recognition: 2026 Guide](https://vexyl.ai/reducing-latency-in-real-time-speech-recognition/): Real-time speech recognition has become essential for contact centres, healthcare documentation, and voice AI applications. However, achieving low-latency real-time speech recognition remains challenging, with many systems struggling to deliver transcripts in under 500 milliseconds. In this comprehensive guide, you’ll learn proven techniques to reduce latency in ASR systems, from architectural optimisations to hardware acceleration strategies that can transform your transcription performance. What Causes Latency in Real-Time Speech Recognition? Understanding latency sources is crucial for optimisation. Total latency in real-time ASR systems stems from five primary components, with model inference accounting for 50-60% of the delay. Audio capture and buffering introduces […] - [Call Centre AI Implementation: Best Practices Guide 2026](https://vexyl.ai/call-centre-ai-implementation-best-practices-guide-2026/): The landscape of customer service is transforming rapidly, and call centre AI implementation has become essential for businesses aiming to stay competitive. Whether you’re running a healthcare contact centre in Mumbai or a fintech support operation in Bangalore, implementing AI effectively can reduce operational costs by up to 30% while improving customer satisfaction scores by 15-20%. However, the difference between successful AI deployment and costly failure often comes down to following proven best practices. In this comprehensive guide, I’ll walk you through everything you need to know about implementing AI in your call centre, based on real-world insights and industry […] - [Voice AI Latency: Marketing Claims vs Production Reality 2026](https://vexyl.ai/voice-ai-latency-marketing-vs-reality/): We’ve all seen the flashy marketing: “500ms latency!” “Sub-second response times!” “Human-like conversations!” But here’s what nobody tells you—these claims rarely survive contact with production environments. After months of building and optimising VEXYL AI Voice Gateway, we benchmarked our performance against industry leaders. The results? Eye-opening. Most voice AI providers deliver 3-5x higher latency in production than their marketing suggests. Let me share what we discovered, why it happens, and what actually matters for real-world voice AI deployments. Why Do Voice AI Providers Over-Promise on Latency? Marketing benchmarks measure isolated components under ideal conditions. They don’t account for real network […] - [AI Voice Gateway for PSTN, SIP and Legacy Systems](https://vexyl.ai/ai-voice-gateway-for-pstn-sip-and-legacy-systems/): In today’s competitive business landscape, customer service can make or break your organization. While your competitors are adopting AI-powered voice assistants, you might be wondering: “How can we implement this technology without replacing our entire phone system?” The answer is simpler than you think. VEXYL AI Voice Gateway transforms your existing phone infrastructure into an intelligent, AI-powered communication system—without the massive investment of replacing everything you already have. What is an AI Voice Gateway? Think of an AI Voice Gateway as a smart translator that sits between your traditional phone system and modern artificial intelligence. It takes incoming calls from […] - [Building Production-Ready Voice AI Agents: A Comprehensive Guide for 2026](https://vexyl.ai/production-ready-voice-ai-agents/): In today’s rapidly evolving landscape of artificial intelligence, voice AI agents have emerged as a game-changing technology for businesses seeking to transform customer interactions. From healthcare appointment scheduling to financial services support, conversational AI is revolutionizing how organizations communicate with their customers. But what does it really take to build a production-ready voice AI system that can handle thousands of concurrent calls with sub-second response times? This comprehensive guide draws from real-world experience deploying voice AI infrastructure that processes over 1,000 healthcare interactions monthly in regional languages, achieving 95% cost savings through intelligent optimization, and maintaining sub-3-second response times in […] - [Voice Activity Detection (VAD) Optimization: The Ultimate Guide to Natural AI Voice Conversations and Speech Recognition](https://vexyl.ai/voice-activity-detection/): Master VAD parameter tuning for seamless AI voice assistants, speech recognition systems, and conversational AI platforms Introduction: Why Voice Activity Detection Matters for AI Voice Applications In today’s rapidly evolving landscape of AI voice technology and conversational AI, Voice Activity Detection (VAD) stands as a critical yet often overlooked component that can make or break the user experience. Whether you’re building AI voice assistants, call center automation, speech recognition systems, or voice AI agents, understanding and optimizing VAD parameters is essential for creating natural, responsive voice interactions. Voice Activity Detection is the foundational technology behind successful real-time speech recognition, intelligent […] - [AI Voice Technology for Business: What Actually Works in 2026](https://vexyl.ai/ai-voice-technology-business/): Tired of missed calls and frustrated customers? We break down how modern AI Voice Technology for Business real conversations —without the robotic awkwardness. - [TTS Latency Benchmark 2025: We Tested 7 Text-to-Speech APIs for Voice AI](https://vexyl.ai/tts-latency-benchmark-2025/): TTS Latency Benchmark 2025:We tested 7 TTS providers from India and US servers. Azure Neural won from Asia (363ms), Deepgram from US (436ms). See full latency benchmarks and recommendations. - [VEXYL Voice Gateway with n8n basic configration](https://vexyl.ai/vexyl-voice-gateway-with-n8n-basic-configration/): Get your AI voice assistant up and running in minutes with VEXYL Voice Gateway, n8n for workflow automation, Groq for lightning-fast speech-to-text, and Deepgram for natural text-to-speech. This guide covers the minimal setup to have a working voice AI pipeline connected to your Asterisk PBX. Prerequisites Before starting, ensure you have: Architecture Overview Here’s how the components work together: Step 1: Create Your Project Directory Create a directory for your VEXYL deployment: Step 2: Create the Environment File Create a .env file with your configuration: Step 3: Create Docker Compose File Create a docker-compose.yml file: Step 4: Set Up n8n […] - [Building AI Voice Agents with n8n: The Ultimate Guide to AI Voice Calls for Business](https://vexyl.ai/building-ai-voice-agents-with-n8n-the-ultimate-guide-to-ai-voice-calls-for-business/): Transform your business communications with AI voice agents that combine the flexibility of n8n workflows with enterprise-grade AI voice call technology from VEXYL Voice Gateway. Introduction: The Rise of AI Voice Agents In today’s fast-paced business environment, customers expect instant, intelligent responses—whether they’re calling at 2 PM or 2 AM. Traditional IVR systems with “Press 1 for Sales, Press 2 for Support” are frustrating and outdated. AI voice agents are revolutionizing how businesses handle phone calls. Unlike basic chatbots, an AI voice agent can understand natural language, hold real conversations, and take actions in your business systems—all through a simple […] ## Pages - [vexyl - TTS](https://vexyl.ai/vexyl-tts/) - [vexyl-stt](https://vexyl.ai/vexyl-stt/) - [Articles](https://vexyl.ai/articles/) - [Pricing](https://vexyl.ai/pricing/) - [Outbound](https://vexyl.ai/outbound/) - [home](https://vexyl.ai/) ## Optional - [Agent (MCP protocol)](websites-agents.hostinger.com/vexyl.ai/mcp) [comment]: # (Generated by Hostinger Tools Plugin)