Your AI voice assistant

Book the jobs you misswhile you’re working.

Keep your number. Forward the calls you miss. It books the job into your Google Calendar and tells you what callers asked.

Free 5-minute demo · No card

Free demo5 minutes. No card or phone number.

Google Calendar, HubSpot, Notion. Other tools connected free

Click to watch

A voice your customerswill remember.

Felicia

Clear
Confident
Knowledgeable
Energetic

Voice: Feminine
Age: Adult
Accent: American
Best for: Advertising

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Isla
Expressive · Polite
Feminine · Australian
Oscar
Knowledgeable · Confident
Masculine · American
Tomas
Professional · Clear
Masculine · American
Miles
Warm · Approachable
Masculine · British
Elena
Positive · Friendly
Feminine · American
Explore all voices

Works with the tools you already use

Connects directly to the software you already use: Google Calendar, HubSpot and Notion today. Use something else? Tell us, and we connect it for you, free.

callzerus

AI orchestrates your workflow

HubSpot
Connected
AM
Alex Morgan
Contact
Note
Email
Call
Task
More
Contact updated in HubSpot.
Google Calendar
Connected
Tue, Oct 15
1:00 PM
2:00 PM
Service visit
Alex Morgan
3:00 PM
Appointment added to your calendar.
Notion
Connected
New service request
Customer
Alex Morgan
Appointment
Tomorrow, 2:00 PM
Status
Scheduled
Task created in Notion.

What happened during the call

Availability checked
Visit booked for 2:00 PM
Details saved
Team updated
Follow-up message sent
CRM updated

Try the free demoSee it happen. Try the free demo.

Free 5-minute demo. No card or phone number needed.

Example workflow

One plan.No surprises.

The plan

$99/ month

300 call minutes and live calendar booking included. Connects to Notion and HubSpot at no extra cost. No setup fee. Cancel at any time.

Founding price

$49/ month~~List price $99~~

For your first 3 months, then $99 a month. Open to the first five paying businesses.

Free demo

A 5-minute live demo call. No card or phone number needed.

How others price it

Booking on the base plan, no setup fee, and extra minutes at $0.25.

Read from each vendor's own page on 7 November 2026.

callzerus compared with FieldCFO, Rosie, Polu, Alexor AI, Sparkwright, Smith.ai
	callzerus	FieldCFO	Rosie	Polu	Alexor AI	Sparkwright	Smith.ai
Starting price	$99 / month	$29 Answer	$49 Professional	$49 Starter	$197 Starter	$299 Essential	$0 Free · $150 Pro
Included minutes	300 call minutes	75 minutes	250 minutes	250 voice minutes	200 minutes	200 minutes	25 / 75 calls
Multiple integrations	Yes. Calendar, HubSpot, Notion + others free	Yes. Jobber, Housecall Pro, Google Calendar	Yes. Zapier; calendar booking from $149	Not listed	Calendar only	Yes. Calendar, Jobber, DripJobs	Calendly and others
Setup fee	None	None	—	—	$299	—	—
Extra minutes	$0.25 a minute	$0.30 a minute	—	—	$0.45 a minute	$1.50 a minute	About $2.00 a call
Live human option	No	—	Call transfer to your team, from $149	—	—	—	Yes. Live receptionists

Early version: check each vendor's page before you decide; plans are not identical. A dash means we did not find it on that page. Sources: FieldCFO, Rosie, Polu, Alexor AI, Sparkwright, Smith.ai.