Missed calls = lost orders
After hours or heads-down on a job, the best prospect rings once and dials the next listing.
Realtime Voice AI · Always on
The AI voice agent that answers every call — in a human voice, 24/7.
A natural, real-time voice answers on carrier-grade lines, pulls from your knowledge base, then texts back and files the lead — the whole call handled, not just answered.
No credit card · Get a dedicated number and trial minutes on signup
1,200+ businesses answer with it
LIVE
00:42
Incoming
+1 (415) 555‑0182
via CallStep AI
Hi, do you do same-day water heater repair?
We do — I can book a technician this afternoon. What's the address?
Intent: High 0.92
KB: pricing matched
Summary emailedScored 9.1 · follow-up due
SMS sent backLead filed to CRM
- Realtime speech model
- Carrier-grade telephony
- Multi-tenant isolation
- iOS + Web
- Pay online, live in minutes
Product overview
One dashboard for every call you take.
The hidden cost
Quietly bleeding money on these every day?
Every missed call is an order a competitor just took. Every agent who quits walks out with a customer file.
Reps cost a fortune and churn
A full-time agent costs thousands a month, takes weeks to train, then quits — and you start over.
Customer info is a mess
Leads scatter across chats, sticky notes and people's heads. When a deal stalls, nobody knows why.
If you nodded more than once, you're exactly who we built CallStep for.
In one line
An AI agent that listens, talks, remembers, and follows up.
It doesn't sleep, show up late, get moody, or quit. Hand it a script — it does the rest:
- Answers 24/7 in a human-grade realtime voice — interruptible, low latency
- Searches your knowledge base mid-call and answers live
- Summarizes, scores and emails a debrief when the call ends
- Texts or calls the caller back, then files the lead into your CRM
- Pushes key calls to your phone — one tap to take over
Starts at less than a part-timer costs for a single day.
One call, the full loop.
- Answer & understand intent
- Check KB, quote, book
- Record, transcribe, summarize
- SMS follow-up + CRM
The product
One platform. The whole phone problem, solved.
Six core capabilities — composable, observable, honestly fast.
Realtime AI voice
End-to-end realtime speech on carrier-grade lines — natural, interruptible, never a script-reader.
- Millisecond latency
- Interruptible
- Persona templates
Live knowledge base
Full-text search pulls answers from your docs while the call is still live.
- Instant retrieval
- Long docs
- Train once
One-tap callback & SMS
Call ends — tap to call back or send an AI-drafted text; threads and tags auto-filed.
- One-tap callback
- AI drafts SMS
- Auto-filed
Call analysis & QA
Recording, transcript, AI summary, score and an email digest on every call.
- AI summary
- QA score
- Email digest
Contacts CRM & reminders
Calls and texts auto-file to contacts, with stages, due-date reminders and multi-tag AND filtering.
- Reminders
- Stages
- Multi-tag
Mobile + web, live takeover
Native iOS and web dialing — push inbound to your phone, tap to take over.
- Mobile + web
- Push inbound
- Tap to take over
Call workspace
Every call, visible and searchable.
Recording, transcript, AI summary and score in one place — filter by stage and tags in a second.
- Local recording + full transcript
- AI summary + QA score
- Follow-up stages + multi-tag filter
On the go
Calls on your phone, takeover in one tap.
Native app and web — important calls push in real time, take over from the AI anytime.
- iOS app + in-browser dialing
- Real-time inbound push
- One-tap human takeover
How it works
From the first ring to a filed lead — automatically.
-
1
The call comes in
The AI picks up on your dedicated number in a human voice — no voicemail, no hold music.
-
2
The AI handles it
It understands intent, checks your knowledge base, quotes, qualifies, or books the appointment.
-
3
You get the debrief
Recording, transcript, AI summary and a quality score, in your inbox right away.
-
4
The lead gets worked
Auto SMS follow-up and timed reminders, then filed into the CRM at the right stage — no intent slips through.
Today's calls12 answered
+1 (415) 555‑0182Won
+1 (628) 555‑7741Follow up
+1 (510) 555‑0344Won
Answer rate100%
Why CallStep
Plenty of "AI receptionists" exist. The difference is what happens after "hello."
| What you care about | Ordinary AI receptionist | CallStep |
|---|---|---|
| Voice quality | Robotic TTS, audible lag | End-to-end realtime speech, ms response |
| Understanding | Breaks on anything off-script | Real comprehension, interruptible, self-correcting |
| During the call | Reads a fixed script | Searches your knowledge base and answers live |
| After the call | Hangs up — that's it | Summary + score + email + auto SMS + CRM |
| Your number & data | Shared pool, leaks waiting to happen | Dedicated number, strict multi-tenant isolation |
| Team | A single shared login | Sub-accounts, per-number per-action permissions |
| Human handoff | No way to take over | Push to mobile/web, one tap to take over |
| Setup & billing | IT project, per-character invoices | Sign up in minutes, top up by the minute, pay online |
Swipe to see the full comparison on mobile →
Built for
Who's already answering with CallStep?
Home services & field ops
Plumbing, HVAC, appliance install, locksmith — even the 2am ring gets caught and booked.
Real estate & remodel
Inquiries arrive faster than you can pick up. AI captures intent, qualifies, and books the viewing.
Law firms & legal
Intake calls, case screening, consult bookings — AI answers professionally and captures the details while you focus on the case.
Clinics, salons & studios
Bookings, reschedules, cancellations, FAQs — kill 80% of repetitive front-desk calls overnight.
Consulting & education
Course inquiries, enrollment bookings, parent calls — none missed at peak; AI answers FAQs and books the follow-up.
Don't see your industry?
If your business runs on the phone, CallStep fits. Spin up a trial number and call it yourself.
Start a free trial →0businesses served
0calls answered
0don't notice it's AI
<10minto go live
From customers
Real teams. Real revenue recovered.
(Sample testimonials — swap in your real customers.)
★★★★★
"We used to lose 40% of after-hours calls. Now every one gets answered — bookings are up 28% this quarter."
Emily ChenFounder · Bloom Studio★★★★★
"It catches buying intent my team missed for years. Three closed deals last month would've died in voicemail."
Michael RodriguezOwner · RM Plumbing★★★★★
"Live in fifteen minutes. The transcripts alone save us hours a week, and the email digests keep me in the loop."
Sarah PatelSales Director · Nexus B2B★★★★★
"Customers compliment our after-hours assistant. They don't realize it's AI — it just sounds like it knows the business."
James ThompsonFounder · TLC Home Services★★★★★
"The moment a call ends, the lead's in our dispatcher's pocket. Response time went from hours to minutes."
Linda WangOps Manager · HomeCare Plus★★★★★
"Cut our missed-call losses by 90%. Easily the highest-ROI tool we shipped this year."
David KimSales Lead · MetroSales
Top-up packs
Pay only for the minutes you use.
No monthly subscription — top up a minute pack and use it as you go. Every plan unlocks the full AI feature set, and the more you buy, the lower the per-minute rate.
Trial
Test-drive the full product, free.
$0
30 call-minutes
No card required
- 1 dedicated phone number
- Full AI answering + SMS + analytics
- iOS app + web console
- Sign up and go, no card
Starter
For solo operators getting started.
$9.89
100 call-minutes
≈ $0.099 / min
- 100 call-minutes included
- 1 dedicated phone number
- AI answering + SMS follow-up + analytics
- iOS app + web console
Growth
For busy small teams.
$38.89
500 call-minutes
≈ $0.078 / min
- 500 call-minutes included
- Everything in Starter
- Unlimited KB + persona templates
- Team sub-accounts + permissions
Pro
Best value for high call volume.
$99.89
1,500 call-minutes
≈ $0.067 / min — lowest rate
- 1,500 call-minutes included
- Everything in Growth
- Lowest per-minute rate
- Priority support
Minutes are one-time top-ups, not a monthly bill. Need higher volume or to port in your own number? Contact sales.
FAQ
What teams ask before signing up.
Will it sound robotic? Will callers push back?
No. We use an end-to-end realtime speech model — natural rhythm, mid-sentence interrupts, in-context tone. Around 90% of callers don't realize it's AI in the first 30 seconds. Open the trial and call it yourself.
I have my own pitch — do I need to "train" it?
No training. Paste your script (prompt), pick an industry persona template, and you're live in minutes. We ship templates for home services, auto, real estate, clinics and more.
What number do callers see?
Your own dedicated local number, auto-provisioned from our pool on signup — yours alone, never shared. On Enterprise you can port in your existing number.
What if I run out of minutes?
We notify you ahead of time — no surprise overage. When minutes run out, calls pause cleanly and resume the moment you top up.
Can a real person take over a live call?
Yes. Inbound calls push to your iOS app / web in real time. One tap and you're in — the AI hands off mid-sentence, no redial.
Is my data isolated? How do team permissions work?
Strict multi-tenant isolation — your team only sees your data. Members get per-number, per-action permissions (view-only, edit KB, and so on), and recordings are exportable on demand.
Billing and invoices?
Top up minutes as you need them — pay online by card or PayPal and go live. No monthly subscription, you only pay for what you use. Standard invoices available, and your balance is always in view.
Last call
Stop sending customers to voicemail.
Every minute you're closed, a competitor's AI is taking your calls. Sign up today — your number is live in about 10 minutes.
No credit card · Number provisioned instantly · No subscription