Private Branch Exchange (PBX)

Private Branch Exchange (PBX) is a telecommunications switching system that serves a private network organization and concentration points which permits the shared use of these lines between all stations in an organization.

How Bandwidth is Involved with PBX

Bandwidth does not typically interact directly with PBXs. A customer often has a Session Border Controller (SBC) between their PBX and Bandwidth.

Terms Related to PBX

• Session Border Controller (SBC)
• Session Initiation Protocol (SIP)