CallBooker is an AI appointment setter. Its AI voice agents call your leads within seconds of them signing up, answer their questions, handle objections and book meetings straight onto your Google Calendar or Calendly while the lead is still on the phone.

Every lead gets a call while they're still interested, at 2 pm or 2 am, without hiring appointment setters or SDRs.

What it does:

• Calls new leads instantly from your forms, CRM, Facebook Lead Ads, Zapier, Make or the API

• Natural, human-sounding voices in 33 languages, switching when the lead does

• Handles objections ("not interested", "send me an email") with your own answers, and learns your business from your website, docs and FAQs

• Checks your real availability and books the meeting live on the call

• Detects voicemail, sends reminders and calls no-shows back to rebook

• Calls whole lead lists with campaigns, with call recordings, transcripts and analytics

• Works from Claude or Cursor through an MCP server

Calls go out from your own Twilio number. Built for SaaS, agencies, real estate, home services, insurance, clinics, law firms and coaches.