A VoIP number (Voice over Internet Protocol) is a real phone number that sends and receives calls over the internet rather than the public switched telephone network. It works on any device with a connection, so the same number can ring a desk app, a laptop, and a mobile phone at once.
Because the number lives in software, not on a physical line, you can add lines, route calls, and move locations without a technician. That flexibility is why most business phone systems are now VoIP.
Frontdesk gives you a business number answered by an AI receptionist that picks up every call, qualifies the caller, books the appointment, and logs the whole conversation to your CRM.