What is the difference between PBX and hosted PBX?

The main difference between PBX and hosted PBX lies in where the system is located and who manages it.  

A PBX (Private Branch Exchange): This is a phone system used by businesses to manage internal and external calls. Traditional PBX systems are installed and maintained on-site, requiring hardware and infrastructure within your office. 

A Hosted PBX: This is a cloud-based phone system. This means your phone system is managed by a provider over the internet, eliminating the need for on-site hardware. It’s easier to maintain, offers more flexibility for remote work, and often reduces costs. 

In short, PBX is on-site and self-managed, while hosted PBX is cloud-based and managed for you.