Build ultra-low latency Voice AI Agents in minutes
Most voice AI platforms orchestrate across rented infrastructure. Telnyx is different. We spent over a decade building a carrier-grade voice network, then colocated GPUs directly with our telephony PoPs. The result: sub-200ms latency, calls that get answered, and reliability no Frankenstack can match.
We're not an orchestration layer on top of someone else's stack. We are the infrastructure.
Because we own it, you pay less. Voice AI agents at a fraction of competitor cost, production-ready in minutes.
<200msround-trip time
99.999%uptime
18 Global PoPs
Trusted Voice AI Agents
Telnyx powers low-latency, multilingual Voice AI Agents that take action, integrate easily, and scale globally. One platform, replaces 5 vendors, providing complete flexibility and competitive pricing.
Bring your own models
Pick from Telnyx's open source LLM library or bring your own API keys. Swap models anytime, zero lock-in.
Multi-agent handoffs
Seamlessly transfer calls or orchestrate conversations across multiple agents on a single call.
Voice Design Lab
Create custom voices that match your brand. Clone existing voices or design new ones from scratch. Your voice, your identity.
AI Missions
Send agents on complex, multi-step workflows. Book appointments, verify documents, update records, and close the loop without human intervention.
AI Insights
Extract custom fields from every call automatically. Define what matters to your business and surface insights across conversations at scale.
HD voice codecs
Crystal-clear audio in any environment. High-quality codecs and AI-powered noise suppression ensure conversations stay focused.
Simulation testing
Run automated multi-path simulations before going live. Test accuracy, reliability, and response quality with confidence.
Carrier-grade trust
A-level STIR/SHAKEN attestation means your calls display as trusted, not spam. 30 to 40% of competitor calls never ring. Ours get answered.
Full-stack observability
One dashboard from call start to completion. End-to-end tracing, latency breakdown, and transcript playback. No finger-pointing between vendors.
Agent Skills
175+ pre-built skills to deploy production Voice AI in hours, fully customizable for your stack.
Bring your own models
Pick from Telnyx's open source LLM library or bring your own API keys. Swap models anytime, zero lock-in.
Multi-agent handoffs
Seamlessly transfer calls or orchestrate conversations across multiple agents on a single call.
Voice Design Lab
Create custom voices that match your brand. Clone existing voices or design new ones from scratch. Your voice, your identity.
AI Missions
Send agents on complex, multi-step workflows. Book appointments, verify documents, update records, and close the loop without human intervention.
AI Insights
Extract custom fields from every call automatically. Define what matters to your business and surface insights across conversations at scale.
HD voice codecs
Crystal-clear audio in any environment. High-quality codecs and AI-powered noise suppression ensure conversations stay focused.
Simulation testing
Run automated multi-path simulations before going live. Test accuracy, reliability, and response quality with confidence.
Carrier-grade trust
A-level STIR/SHAKEN attestation means your calls display as trusted, not spam. 30 to 40% of competitor calls never ring. Ours get answered.
Full-stack observability
One dashboard from call start to completion. End-to-end tracing, latency breakdown, and transcript playback. No finger-pointing between vendors.
Agent Skills
175+ pre-built skills to deploy production Voice AI in hours, fully customizable for your stack.
RESOURCES
Build your agent
The best voice AI Agent tools
Access Deepgram, Whisper, and other leading transcription engines through a single API. Our edge-hosted architecture lets you switch engines without rearchitecting your stack.
TTS Router
Turn text into natural speech with 1,300+ voices across 10+ languages from leading engines like ElevenLabs and Rime. Built for real-time Voice AI with edge hosting that eliminates network round-trips.
Integrations Hub
Connect Voice AI to your existing stack with 30+ pre-built integrations across 13 categories. From CRMs to analytics to automation platforms, deploy faster without custom development.
TTS Library
Browse 1,300+ voices from providers like ElevenLabs, Rime, and MiniMax. Preview, compare, and find the perfect voice for your brand and audience.
FAQ
ADDITIONAL RESOURCES
Voice AI Agents Expert Hub
Find tips, best practices, and guides for building low-latency Voice AI Agents with Telnyx.
Conversational AI Quickstart
Conversational AI enables machines to understand, interpret, and respond naturally to human language.
Voice Assistant Quickstart
In this tutorial, you'll learn how to configure a voice assistant with Telnyx.
Inference API Quickstart
Building AI agents is slow and complex. Telnyx Inference API simplifies deployment with OpenAI compatibility and scalable GPU performance.
Gather using AI API
Manual call data gathering wastes time and frustrates users. Telnyx AI Agents automate, transcribe, and streamline voice inputs for enterprise calls.
Start AI Assistant API
Legacy IVRs frustrate callers and slow support. Telnyx AI Agent APIs automate voice calls with natural speech, improving CX and efficiency.
Stop AI Assistant API
AI agents can create confusion if not managed. Telnyx lets you stop AI assistants instantly, ensuring seamless call control and enterprise security.
Inference APIs
Building enterprise AI agents is complex and time-consuming. Telnyx inference APIs simplify integration, speeding deployment and scaling securely.
Voice APIs
Our Voice products make it possible for you to programmatically manage calls, manage outbound voice traffic, and send/receive faxes.
How to optimize voice AI applications with fine-tuning
Learn best practices and actionable strategies for fine-tuning voice AI applications to enhance real-time processing, accuracy, and user satisfaction.
The Top 5 Voice AI Providers in 2025 [Reviewed]
We ranked the top voice AI platforms for 2025—from real-time agents to global infrastructure—so you can choose the right stack for your build.
How AI voice works and why it’s important
Enterprises struggle with complex voice automation and costly support. Telnyx AI Voice streamlines service, boosts efficiency, and personalizes CX.
Voice AI Agents—Quickly build and launch | Ultra-low latency
Build and launch powerful Voice AI Agents faster and cheaper with Telnyx. Ultra-low latency, unmatched call quality, total control.
Why low-latency is essential for real-time voice AI
Learn how every millisecond impacts voice AI. Explore how Telnyx’s full-stack approach delivers ultra-low latency and smoother voice interactions.
How to build a low-latency voice assistant: Expert insights
Learn how Telnyx engineers tackled latency challenges to build a voice assistant with under-1s response time. Explore solutions in our webinar recording.
Build an AI Assistant with Telnyx
Building voice AI is complex and slow. Telnyx lets any team launch secure, intelligent assistants in minutes, reducing support costs and wait times.
Voice analytics tools: building blocks for telephony and AI
Learn how Telnyx supports conversational AI and voice analytics with plug-and-play APIs to control a global, real-time telephony & communications network.
Customer spotlight: Using Telnyx Voice API with OpenAI
A developer in Turkey leveraged Telnyx and OpenAI to call thousands of pharmacies to find medication during a shortage.
Voice AI Agents—Quickly build and launch | Ultra-low latency
Build and launch powerful Voice AI Agents faster and cheaper with Telnyx. Ultra-low latency, unmatched call quality, total control.
The Better Twilio Alternative - Telnyx
Switch to Telnyx for a better Twilio alternative. Benefit from our competitive pricing, private global network, and award-winning support.
The better Vonage Voice API alternative - Telnyx
Switch to Telnyx for a better Vonage voice alternative. Benefit from our global coverage, excellent support, and flexible APIs..
Voice API Essentials | Telnyx Help Center
In this collection you will find helpful links that explain the mission control portal features and troubleshooting tips.
Real-Time Transcription | Telnyx Help Center
Enable real-time transcription for calls with Telnyx. Enhance user experience now.
Inbound/Outbound Voice | Telnyx Support
Inbound/Outbound Voice configuration guideline materials. Start building on Telnyx today.
Configuring Call Control/TeXML Applications | Telnyx Support
This article describes the in-depth setup of Call Control / TeXML Applications on our Mission Control Portal.
General Voice API Help | Telnyx Support
Get assistance with Telnyx's Voice API: UK TPS, Google Verified Calls, STIR/SHAKEN.
Mission Control Portal - AI Chat Support Assistant | Telnyx Support
A new AI Assistant that helps provide answers to frequently asked questions.
Conversational AI [Integration] Use Cases
Boost engagement and efficiency through Telnyx's Conversational AI. Start integrating now.
Contact Center Solutions - Build Delightful CX
Enhance your contact center's customer experience with omnichannel, carrier-grade communications, delivered via API. Start delivering delightful CX today.