Voice AI, written by builders
Practical guides, platform comparisons, and engineering deep dives from the team behind Call2Me.
How to choose a voice AI provider: the 8 questions that actually matter
A practical buyer's guide for picking voice AI infrastructure — eight evaluation questions, what to ask each vendor, and what answers should make you keep looking.
NewEngineeringWebhook signature verification: the security step people skip
Your voice agent fires webhooks on call events. If your endpoint accepts any POST that reaches it, anyone who learns the URL can forge events. How HMAC signature verification works, why timestamp checks matter, and how to do it without breaking.
May 19, 20264 min
NewSalesVoice AI for sales follow-up: the 60-second qualification call
Most leads die in the gap between form submission and the first human call. How sales teams use voice AI to call new leads within seconds, qualify them in under a minute, and hand warm prospects to reps — while disqualifying the rest.
May 19, 20264 min
NewLegalVoice AI for law firms: intake calls, scheduling, after-hours coverage
How law firms use voice AI to capture new-client intake calls around the clock, screen matters before they reach an attorney, and stop losing prospective clients to voicemail — without crossing the line into legal advice.
May 19, 20264 min
NewEngineeringVoice agent observability: logs, transcripts, and traces that explain a bad call
When a voice agent handles a call badly, 'it sounded wrong' is not debuggable. What to capture — transcripts, turn timings, tool calls, recordings — so every call can be reconstructed and the failure pinned to a cause.
May 19, 20265 min
Real EstateVoice AI for real estate: lead qualification, showing booking, and after-hours capture
How real estate brokerages and individual agents use voice AI to qualify inbound leads in 30 seconds, book property showings into the calendar, and stop losing buyers who call after 6pm — with the patterns that actually convert and the ones that just frustrate.
May 13, 20266 min
E-commerceVoice AI for e-commerce: order status, returns, and abandoned-cart recovery on the phone
How online retailers use voice AI to handle the four calls that swamp support — where is my order, can I return this, did my refund go through, and the abandoned-cart save call that pays for the entire system.
May 13, 20267 min
HealthcareVoice AI for dental practices: pain triage, recall calls, and the no-show problem
Dental practices have a different phone problem than general clinics — pain triage decisions, slot-type matching for cleanings vs procedures, insurance pre-checks, and a no-show rate that quietly eats 8-15% of revenue. How voice AI handles each one.
May 13, 20267 min
Prompt EngineeringVoice agent prompts are not chat prompts: 7 patterns that work
The system prompt that crushed your chat agent will tank your voice agent. Here's why — and the seven concrete patterns that turn a chat-shaped prompt into a voice-shaped one.
May 6, 20266 min
AI AgentsGive your AI agent a phone: turning chat agents into voice agents
Slack, Gmail, Notion — your agent can already do everything except pick up the phone. Here's how to add a real phone-call tool in 8 lines, and what changes when it can.
May 6, 20265 min
AI Appointment BookingAI appointment booking by phone: the patterns that work in 2026
Three flows do most of the work in voice-AI appointment booking — inbound capture, outbound confirmation, no-show recovery. Here's how each one is built, what to wire it into, and the trade-offs nobody mentions until you ship.
May 6, 20266 min
Knowledge BaseFrom PDF to live phone call: how voice AI uses your knowledge base
What actually happens when a caller asks 'do you have gluten-free pasta' and the agent answers correctly — chunking, embeddings, retrieval, grounding, and the failure modes that break it. The pragmatic engineering view of RAG for voice.
Apr 30, 20267 min
HealthcareVoice AI for clinics: appointment booking, reminders, triage handoff
How small and mid-size clinics use voice AI to capture appointments after hours, run reminder campaigns, and route urgent cases to humans — with the patterns that respect patient privacy and the ones that don't.
Apr 30, 20266 min
TutorialBuild a restaurant voice agent in 10 minutes (step-by-step)
A literal walkthrough — wizard click by wizard click — to put a Turkish-and-English voice agent on a real phone number that takes reservations, answers menu questions, and forwards emergencies. From signup to first live call in 10 minutes.
Apr 30, 20265 min
MultilingualRun one voice agent in 9 languages: a multilingual setup guide
How to deploy a single voice agent that handles Turkish, English, German, French, Spanish, Italian, Portuguese, and Arabic — without spinning up nine separate agents. The architecture, the trade-offs, and the live setup.
Apr 30, 20266 min
WidgetShip a chat widget on your site in one line of JavaScript
Drop one script tag, get a live AI chat agent on every page — same agent that answers your phone, same knowledge base, same brand. The full setup, the customization options, and the pricing math.
Apr 30, 20265 min
CampaignsBulk outbound voice campaigns: from CSV to 1,000 calls in an hour
How to run an outbound voice AI campaign at scale — CSV upload, retry rules, post-call data extraction, and the cost math that makes it work. Live and dialing in under 30 minutes.
Apr 30, 20267 min
White LabelYour Brand. Your Platform. — White-label voice AI for agencies
Stop reselling someone else's logo. Run a voice AI platform under your own brand, your own domain, your own pricing — without building a single line of infrastructure.
Apr 26, 20266 min
GuideWhat is Voice AI? A 2026 field guide
Voice AI is the layer that lets humans and machines talk in real time. Here's how it works, who it's for, what it costs — and how to ship a working agent in 5 minutes.
Apr 25, 20266 min
AI ReceptionistHow to set up an AI receptionist for your restaurant in 2026
An AI receptionist captures reservations 24/7, answers menu questions, and never puts callers on hold. Here's exactly how to deploy one for your restaurant — start to first booking in under 30 minutes.
Apr 25, 20265 min
Voice AIVoice AI vs IVR: which one should you actually use in 2026?
IVR phone menus annoy callers and lose deflection rates. Voice AI sounds human and handles the same calls for less. Here's the honest comparison — when each one still wins.
Apr 24, 20265 min
EngineeringSub-500ms voice latency, explained in budgets
End-to-end latency is the single most important number in voice AI. Here's where every millisecond goes — and why most homemade pipelines silently double it.
Apr 23, 20266 min
Build vs BuyTwilio + custom code vs hosted voice AI: the real cost comparison
Building voice AI on Twilio sounds cheaper until you add up the engineering hours, the SDK glue, and the year of maintenance. Here's the honest math.
Apr 22, 20265 min
ComparisonCall2Me vs Vapi: an honest side-by-side
Both ship voice AI. Here's where each one fits, the real cost math the marketing pages skip, and which one you should pick for your use case.
Apr 21, 20265 min