Every call answered. Every appointment booked. 24/7.
No signup required. Try it in 30 seconds.
A complete AI-powered phone system that handles calls exactly how you want.
Never miss a call again. Our AI answers every call instantly, day or night, weekends and holidays included.
Seamlessly book appointments directly into your calendar. Syncs with Google Calendar, Calendly, Cal.com, and more.
Human-like voice interactions that understand context, handle interruptions naturally, and respond in under 800ms.
Get instant transcripts and AI-generated summaries after every call. Never lose important details.
Automatically log calls and update records in Salesforce, HubSpot, Pipedrive, Zoho, and more.
Serve customers in their preferred language with automatic detection. No configuration needed.
Getting started is simple. No complex setup, no technical expertise required.
Tell us about your business, services, and how you want calls handled.
Forward your business line or get a new number. Takes under 5 minutes.
Your AI receptionist starts handling calls immediately. Monitor everything from your dashboard.
Seamlessly connects with the apps you already use
Custom-trained AI agents that understand your business and speak your customers' language.
Appointment booking, patient inquiries, insurance verification
Client intake, case status updates, consultation scheduling
Property inquiries, viewing appointments, buyer qualification
Service scheduling, parts availability, test drive bookings
Reservations, guest services, event inquiries
Meeting scheduling, client support, general inquiries
See how CallSync is transforming customer service for businesses like yours
"We went from missing 40% of calls to answering every single one. Our booking rate increased by 65% in the first month."
Maria Andersen
Owner, Nordic Dental Clinic, Copenhagen
"The AI handles inquiries in perfect Danish, German, and English. Our international clients are impressed by the seamless experience."
Henrik van der Berg
Managing Partner, Legal Associates, Amsterdam
"Setup took 15 minutes. Now we never miss a service appointment request, even at 2 AM. ROI was positive within the first week."
Klaus Weber
Operations Manager, AutoPro Service, Hamburg
TRUSTED TECHNOLOGY
Choose the plan that fits your business. All plans include every feature.
Perfect for small businesses
For growing businesses
For high-volume businesses
For businesses with 60+ calls/day or multiple locations, we offer custom Enterprise plans.
Contact SalesEverything you need to know about CallSync
Most businesses are up and running within 24 hours. Our team handles the setup, configures your AI agent based on your business needs, and provides a dedicated phone number. You just need to forward your existing number or use the new one.
CallSync supports English, German, French, Dutch, Danish, Norwegian, Greek, Maltese, and many more European languages. The AI can seamlessly switch between languages during a call if needed.
Yes! CallSync integrates with Google Calendar, Microsoft 365, Calendly, and most popular booking systems. The AI checks real-time availability and books appointments directly into your calendar.
You can configure fallback rules - transfer to a human, take a message, or forward to voicemail. The AI also knows when to escalate complex issues and will seamlessly transfer calls based on your preferences.
Absolutely. We're GDPR compliant, use 256-bit encryption, and store all data in EU-based data centers. Call recordings and transcripts are encrypted at rest and in transit. You can also set data retention policies.
Yes, you have full control over the AI's personality, greeting, responses, and business knowledge. You can upload FAQs, business information, and specific scripts for different scenarios.
We'll notify you when you reach 80% of your limit. If you exceed your plan, calls continue at overage rates or you can set up automatic plan upgrades. No calls are ever dropped.
Yes! You can either forward your existing number to CallSync, or port your number over to us. We also provide new local numbers in most European countries if needed.
Still have questions?
Contact our teamStart with free credits today — no commitment required.
Free credits to start • No commitment • Pay as you grow