Private Branch Exchange (PBX) is a private telephone network that acts as an internal switchboard for effective internal and external communication; the latter is facilitated by a connection to a public switchboard

Improved internal communication is the main advantage of a PBX. By using short extensions or internal lines instead of full phone numbers, employees can easily communicate with each other without having to use separate phone lines. Employees can also share phone lines. This is essentially free of charge since no external switchboard is used. A traditional PBX system, however, requires expensive switchboard hardware, phone lines wiring, and ongoing maintenance.
An IP PBX is an advanced PBX system that uses the Internet Protocol to communicate with existing broadband infrastructure. Datawave UCaaS (Unified Communications as A Service) is one such example of an Internet Telephony PBX. All communication takes place using UCaaS console software available in both web and mobile versions, softphone apps, or physical IP phones that can be purchased separately
UCaaS solutions require no hardware purchase and maintenance, so their cost is a fraction of the cost of a traditional PBX, and their installation and maintenance is simpler. In addition, UCaaS solutions offer other benefits such as the ability to reroute phone lines without physically moving them, and the ability to unify your entire enterprise with one communication system. Even if all staff members work from home, another office, or are on the road; they can still use the same system and communicate with one another using UCaaS extensions and lines and also integrate into Microsoft Skype and Microsoft Teams. Also, the system can be customized to meet the needs of your organization and expanded organically as it grows.