Blog
Code-first technical deep dives into real-time Voice AI, call monitoring, and AI communications infrastructure. Every post ships with a working code example.
Build Semantic Search for Support Tickets with Telnyx AI Inference
Search usually starts simple.
Voice AIYour AI Assistant Needs a Backend. Put It at the Edge
Building a voice AI assistant has never been easier. You write a prompt, connect a phone number, pick a model, and within minutes your assistant is answering...
Voice AIBuild a Natural Language to SQL API with Telnyx AI Inference
SQL is powerful, but it is not always the interface people want to use.
Voice AIBuild an AI Audio Translator with STT + Translate + TTS on Telnyx
Localizing a podcast, translating a recorded meeting, or dubbing a lecture used to require three different services. The Telnyx AI Inference API exposes STT,...
Voice AIBuild a Non-Manipulative AI Subscription Cancel-Save Agent with Telnyx
Subscription cancel-save flows are easy to over-engineer into manipulative dark patterns, and easy to under-engineer into "your subscription has been cancell...
Voice AIBuild a Hotel Guest Services Line with Telnyx Voice and SMS
Hotels lose guest satisfaction when the front desk is busy, off-shift, or stuck on the phone. A concierge voice and SMS line gives guests one number to call ...
Voice AIBuild an AI Error Explainer with Telnyx AI Inference
Every developer has seen an error message that looks obvious only after the fix is already known.
Voice AIDeploy an MCP Server to Edge Compute: Expose Telnyx APIs as Tools for AI Agents
The Model Context Protocol (MCP) has become the standard way for AI agents to call external tools. Claude, Cursor, and a growing ecosystem of agent framework...
Voice AIBuild an AI Language Learning Phone Tutor with Telnyx Voice AI and AI Inference
Language learning apps work fine on a screen, but the hardest part of picking up a new language is the thing screens avoid: actually speaking out loud, in re...
Voice AII Replaced My Voicemail With an AI That Texts Me Summaries (in 118 Lines of Python)
Every voicemail system does the same thing: record audio, hope the recipient checks it. Most never do. Here's how I built a voicemail that calls an LLM, clas...
Voice AIHow to Build an AI Hiring Phone Screen with Telnyx Voice
The first-round phone screen is the most repetitive part of hiring. A recruiter calls a candidate, asks the same five questions, takes notes, and decides whe...
Voice AIHow to Build an AI RSVP Phone Line with Telnyx Voice
Every event I have ever organized has the same problem. I send the invites. People say "I'll RSVP later." They don't. Then I spend three days chasing them on...
Voice AIBuild an AI Changelog Generator with Telnyx AI Inference
Most developers have written a changelog by staring at a wall of commit messages and trying to remember what actually mattered.
Voice AIBuild a CDR Usage Analytics Dashboard with Telnyx AI Inference
Call Detail Records are one of those data sources that quietly explain a lot about a communications product.
Voice AIExtract Structured Data from Faxes with Telnyx AI Inference
Fax is not the first workflow most developers want to modernize.
Voice AIBuild an AI Audiobook Narrator with Telnyx AI Inference, TTS, and Cloud Storage
Turning a manuscript into a narrated audiobook traditionally means hiring a voice actor, booking studio time, and accepting that revisions cost hours of re-r...
Voice AIHow to Build a Real-Time Phone Call Transcription Pipeline with Telnyx and OpenAI Whisper
This example wires up the smallest useful phone-call-to-AI-response pipeline:
Voice AIHow to Build an AI Chat Endpoint in Node.js with the Telnyx AI Assistants API
Most "add an AI assistant to my app" tutorials stop at the demo. They show you how to call an LLM and print the response, then leave the production plumbing ...
Voice AILook Up Phone Number Carrier and Line Type with Python and the Telnyx Number Lookup API
Every communications workflow has a question it needs answered before the first message or call goes out: what kind of number is this? Is it a mobile phone, ...
Voice AIBuild a Voice-Controlled IoT Command Line with Telnyx
Voice AI demos often stop at conversation. A caller asks a question, an assistant replies, and nothing visible changes.
Voice AIMonitor Number Reputation with Telnyx AI Inference
Outbound communication only works when the numbers behind it stay healthy.
Voice AIBuild a Web Chatbot with a Telnyx AI Assistant
A useful AI assistant demo does not always need a phone call. Sometimes the fastest way to show the value of a Portal-managed assistant is a simple web chat:...
Voice AIEnrich Leads with Number Lookup and AI Inference
A phone number can tell you more than whether a lead typed ten valid digits into a form.
Voice AIBuild an AI Restaurant Reservation Voice Agent with Telnyx
Restaurants lose bookings when callers hit voicemail, wait on hold, or call outside staffed hours. A voice ai reservation agent gives developers a practical ...
Voice AIPredict Churn Before Customers Leave
Customer churn rarely comes out of nowhere.
Voice AISend OTP Codes Over WhatsApp With the Telnyx Verify API
WhatsApp has more than two billion active users worldwide, making it the most popular messaging platform on the planet. For businesses that rely on one-time ...
Voice AIBuild an SMS Auto-Reply Bot With the Telnyx Messaging API
Every business gets text messages outside of office hours. Customers ask about pricing, request support, or just want to know when you're open. Without an au...
Voice AIRoute Phone Calls to an AI Agent With the Telnyx Voice API
Voice AI agents are transforming customer service, sales, and support. But before an AI can talk to a caller, you need the voice infrastructure layer — a way...
Voice AIHow to Build a RAG Application with Telnyx AI Inference
A generic chatbot can answer anything. That is also the problem.
Voice AIBuild Conversational Workflows with Telnyx Voice AI for Insurance Claims Intake
When customers call support, there are moments where they are not actively talking to the agent. In an intake workflow, silence, menu trees, and clarificatio...
Voice AIHow to Build an AI Audio Translator with Telnyx STT, Inference, and TTS
Audio content is hard to localize manually. A podcast clip, customer interview, lecture, meeting recording, or product walkthrough has to be transcribed, tra...
Voice AIHow to Build an Outbound Hold Agent with Telnyx Voice
The first version of an outbound voice agent seems simple: call a company, listen to the IVR, press the right menu option, and talk to a representative.
Voice AIBuild Provisional Voice API Agents with Telnyx
Provisional agents are a pattern for using one reusable AI assistant configuration across many runtime contexts. Instead of creating a separate assistant for...
Voice AIHow to Extract Structured JSON from Messy Text with Telnyx AI Inference
Every operations team has a pile of text that is useful but hard to automate: support tickets, inbound emails, incident notes, sales leads, account updates, ...
Voice AIHow to Build a Warm Transfer System with Node.js and the Telnyx Voice API
A warm transfer is the difference between a customer feeling handed off and a customer feeling taken care of. When a support agent says "let me connect you w...