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24/7 dispatcher for a plumbing company

A 3-persona voice team that triages emergencies, books arrival windows and files every call into a live ops board — 24/7.

The problem

For a plumber, a missed call isn't a missed message — it's a lost job. Emergencies don't wait for office hours: a burst pipe at 2 AM needs someone who answers, stays calm and acts. And when the crew is elbow-deep in a job, nobody's picking up the office line.

What we built

A voice squad with warm handoffs. Riley answers every call and figures out what's happening, then passes you to Casey to book a visit or Sam for an emergency. Transfers are announced, and nobody ever asks you to repeat yourself.
Urgency triage that acts like a pro. Every call is classified P1–P4. Active flooding gets the shut-off-valve instruction first, then Sam captures the address and logs an emergency — the team is alerted and the caller is promised a callback within 15 minutes. Never a dead end.
Real scheduling, honest fallbacks. Casey books arrival windows against live capacity — offering only windows that exist. Fully booked? You go on a priority callback list, not into an invented slot. And after each call, GPT-4.1 reviews the transcript and sends a personalised follow-up email.
A live ops board you can watch. Every call ends as a card on a Notion board — urgency, issue type, address, booked window or emergency flag, recording and summary. Make a test call and watch your own card appear.

Try it

The demo runs right in your browser — you talk, the team answers, over a phone-quality line. Calls are capped at 2 minutes.

Try the live demo →

🚨 Say “my basement is flooding!” — meet Sam, the emergency line.

🚿 Say “my kitchen sink is clogged” — Casey books you an arrival window.

💵 Ask “how much to replace a water heater?” — no invented prices, ever.

Under the hood

Caller ── browser web-call ──▶ Vapi squad: Riley (dispatch) → Casey (booking) / Sam (emergency)
                                  │ STT Deepgram Nova 3 · LLM GPT-4.1-mini · TTS Deepgram Aura
                function tools ───┤
                                  ▼
                     Cloudflare Worker api.lumryn.com
                       ├─▶ D1 jobs · calls (multi-tenant)   ├─▶ KV hours · windows · service area
                       │ end-of-call report
                       ├─▶ GPT-4.1 call analysis ──▶ personalised follow-up email
                       ├─▶ Notion ops board (live card per call)
                       └─▶ Telegram alert to the team

VapiCloudflare WorkersCloudflare D1KVNotionGPT-4.1Deepgram

The backend is a single Cloudflare Worker: it answers the agents' tool calls in milliseconds during the live conversation, then does the slow work — analysis, ops card, email, alerts — after the call ends. Built multi-tenant from day one, so deploying it for a real plumbing company is configuration — hours, service area, capacity — not a rebuild. Watch the ops board — your test call will appear there.

Want this answering your phones?

Plumbing, HVAC, electrical, any trade where missed calls are lost jobs — the same front office can answer for you.

hi@lumryn.com