A PBX is the switchboard at the heart of a business phone system. It connects internal extensions to each other and to outside lines, handling transfers, hold, and routing.
Traditional PBXs were physical boxes installed on site. Cloud PBX moves the same functions into software, so a small business gets enterprise call handling without the hardware.
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.