An enterprise-hosted PBX is a phone system that is operated and maintained by a VoIP phone (also known as cloud phone) service provider instead of on-premise hardware. Enterprise cloud PBX not only costs less (both less in hardware and less in maintenance), but it's easy to update and you can customize without calling out a tech team to implement changes. A VoIP phone system also lets employees work from anywhere as a team, as they can access the system and their stored information (such as their private extension or phone line) from their mobile device, tablet, or personal computer – whether they're working remotely or in the office.