Voice agents that answer every call.
Phone-answering agents trained on your real scripts and edge cases, connected to your calendar and CRM. Built on Vapi and Twilio, tuned until it doesn't sound like a bot.
What a voice agent actually does for you
Most missed revenue isn't lost in a pitch, it's lost in a voicemail. A Quantumm Stack voice agent picks up on the first ring, every hour of the day, and holds a real conversation using your scripts, your pricing rules, and your edge cases.
We don't ship a demo. We record how your best person handles the phone, turn that into a call flow, then run hundreds of test calls against it before it ever touches a customer line.
- Answers on the first ring, 24/7, with no hold music
- Qualifies the caller before it books anything
- Writes a summary and next step into your CRM
- Escalates to a human the moment it should
- 01
Call mapping
We listen to real calls and map every branch: new enquiry, existing customer, price shopper, wrong number, emergency.
- 02
Agent build
The flow is built on Vapi and Twilio with your tone of voice, then wired to your calendar, CRM, and payment or quoting tools.
- 03
Test calls
We run adversarial test calls, accents, interruptions, background noise, weird requests, and tune until it holds up.
- 04
Go live and tune
Number ported or forwarded, then a weekly review of transcripts for the first month with fixes shipped as we go.
Will callers know it's an AI?
We tell them it's an assistant, that's the honest and legal answer. What they won't get is a robotic script; latency and phrasing are tuned until the call feels normal.
What happens if it doesn't know something?
It says so, captures the detail, and either transfers live or books a callback. It never invents pricing or promises.
How long does a build take?
A single-flow agent is usually live in two to three weeks. Multi-location or multi-language builds take longer.
Booking & calendar sync
Books estimates, consults, or appointments straight into Google Calendar, Calendly, or your scheduling tool, no double-booking.
CRM logging
Every call gets logged as a contact or lead in your CRM automatically, with a summary and next step.
Human handoff
Clear rules for when the agent hands off to a real person, never leaves a caller stuck talking to a wall.
Built on Vapi & Twilio
Production voice infrastructure, not a demo stack, designed to handle real call volume.
Still reading? Good. Book a 20-minute call.
No sales pitch, we'll ask what's slow or missing right now, and tell you honestly if this is the fix.