Get a Business Phone Number That Answers Itself
KaiCalls is a business phone number with a built-in AI receptionist for $10 per month flat. You get the number, the 24/7 answering, the appointment booking, and the CRM push in one plan. No per-seat pricing, no per-call credits, no setup fees.
Most business phone services give you a number. Google Voice, Sonetel, and Quo (formerly OpenPhone) all make you answer the call yourself — or pay extra for AI credits. See Quo's published rates at openphone.com/pricing.
Dial the demo line and hear Kai handle a contractor call live. No signup, no form.
The Problem
Phone numbers don't answer themselves. You still have to pick up.
- Google Voice: $10/mo, you answer
- Sonetel: $9.95/mo, you answer
- Quo: $15/mo + per-call AI credits on top
- Every missed call is a lost job
The Solution
KaiCalls is a business phone number with a built-in AI receptionist.
- $10/mo flat — number + ~20 Kai-answered calls/mo
- Kai answers 24/7, weekends, holidays
- Books Google Calendar during the call
- Texts you the lead details + summary
Business Phone Number Comparison
How KaiCalls compares to other business phone number providers.
| Provider | Price | Kai answers? | 24/7 coverage | Books appointments | Notes |
|---|---|---|---|---|---|
| Google Voice | $10/mo | Number + voicemail only | |||
| Sonetel | $9.95/mo | International numbers + voicemail | |||
| Quo (OpenPhone) | $15/mo + credits | Add-on | Add-on | Phone system + AI credit packs | |
| KaiCalls | $10/mo flat | Number + Kai answers 24/7 |
Pricing — Flat Monthly
One price per month. No per-seat charges. No per-call credits.
There are no per-minute overage charges. Your plan includes an expected monthly call allowance. If your call volume stays higher, we recommend the next plan and notify you before anything changes. You can choose to keep your current plan, and we move you back down if volume drops. Direct integrations with Google Calendar, SMS, Email, and Stripe. Everything else via webhook + Zapier (5,000+ apps).
Hear Kai Live Before You Sign Up
Call the demo line right now. Talk to Kai the way a customer would. No form, no email.
1 (472) 238-3790Common Questions
How do I get a business phone number?
You sign up at kaicalls.com, choose an area code, and a business phone number is provisioned to you in about 3 minutes. KaiCalls plans start at $10 per month and include the number, the AI receptionist, and a generous answered-call allowance (Kai Backup covers ~20 Kai-answered calls/mo). You can also test the product first by calling the demo line at 1 (472) 238-3790.
What is the difference between a business phone number and a regular phone number?
A business phone number is separate from your personal cell so you can publish it, forward it, and hand it off. Services like Google Voice and Sonetel give you a second number for about $10 per month, but you still have to pick up. Every KaiCalls plan also includes a business phone number, and that number answers itself — Kai picks up, qualifies the caller, books the appointment, and texts you the details.
Can I keep my existing business phone number?
Yes. You can port your existing business phone number into KaiCalls, or you can use call forwarding so your current number rings your cell first, then rolls over to Kai if you miss it. Setup takes about 90 seconds for forwarding or a few days for a port.
How much does a business phone number with AI answering cost?
KaiCalls plans start at $10/mo with unlimited secretaries. Monthly plans and call allowances: Kai Backup $10 (~20 Kai-answered calls/mo), Kai Answering $79 (~170 Kai-answered calls/mo), Kai Office $349 (~800 Kai-answered calls/mo). There are no per-minute overage charges. Your plan includes an expected monthly call allowance. If your call volume stays higher, we recommend the next plan and notify you before anything changes. You can choose to keep your current plan, and we move you back down if volume drops. Software features are available on every plan. Extra phone lines and optional website call tracking cost extra. Connected services require setup. No setup fees, no per-seat charges.
Is a business phone number that answers itself better than Google Voice?
It depends on what you need. Google Voice Starter is $10 per user per month (as of September 2026) for a second number you answer yourself. Kai Backup is $10 per month and includes a phone number plus ~20 Kai-answered calls/mo, so Kai picks up when you miss calls while working — on a job site, in a meeting, driving, or after hours.
