Never miss a call. Never miss a booking.
InStack answers the phone for your small business — books appointments, captures leads, and follows up by SMS. Around the clock.
An AI receptionist that actually picks up.
Six things every agent does, out of the box. No prompt engineering, no scripts to write — connect a number and a calendar, and you're answering calls.
Fig. 02 · Capabilities · v3.4
Answers in one ring
No menus, no hold music. InStack picks up by the first ring with a natural voice trained on your business.
Books straight into your calendar
Connect Cal.com, Google, or Square. Agents check availability and confirm in real time.
Follows up by SMS
Sends confirmations, reminders, and follow-ups automatically — caller never has to repeat themselves.
Knows your business
Upload your FAQ, price list, and policies. Agents answer accurately and escalate when they should.
Workflows that route
Triage by intent — book, quote, support, emergency. Hand off to a human when it matters.
Dashboard for every call
Recordings, transcripts, lead capture and bookings — searchable, exportable, in one place.
One agent, tuned to your industry — talk to it now.
Every vertical has its own vocabulary, its own urgent calls, its own booking flow. Pick yours and try the agent live in your browser — no signup.
Meet Sophie — Your Dental Receptionist
Sophie answers every call, triages emergencies, books patients straight into your practice calendar, and sends reminders that cut no-shows — 24/7, with data kept onshore in Sydney.
Try Sophie live →
Live in under ten minutes.
No engineers. No prompt wrangling. Set it up the way you'd set up a new staff member — give it a number, the rules, and the calendar.
Fig. 04 · Setup · 4 steps
Connect a number
Port an existing number or spin up a new Twilio line in 30 seconds.
Drop in your knowledge
Upload FAQs, price lists, policies. Agents read them like an employee would.
Pick a workflow
Booking, lead capture, triage, support — pre-built or fully custom.
Go live, listen in
Every call recorded, transcribed, searchable. Tweak as you go.
What operators say after 30 days.
Fig. 05 · Verified customers
Pay for the calls you actually answer.
One dollar per minute. No monthly fees. No minimum spend. You pay for the call you just watched — that's it. Most bookings cost less than a cup of coffee and turn into revenue before lunch.
- Unlimited training & voice updates
- Calendar, CRM & phone integrations
- Multi-channel (phone, chat, WhatsApp)
- Real-time dashboard & call reviews
- Auto SMS confirmations
- Escalation to your team
- No monthly fees, no minimum spend
- 7-day free trial to test it live
Ref · #48C21A
Retain this receipt. InStack AI PL · ABN 65 106 793 319
Things operators actually ask.
Can't find what you're looking for? We answer every email within a few hours, AEST.
admin@instack.com.auSet up in ten minutes. Try a live agent on a real number — no card required, no commitment until you're sure.