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Early-1970s Telephone Exchange model TESLA Automatic system Early model 464G Western Electric key telephone set. A business telephone system is a telephone system typically used in business environments, encompassing the range of technology from the key telephone system (KTS) to the private branch exchange (PBX).
An IP PBX ("Internet Protocol private branch exchange") is a system that connects telephone extensions to the public switched telephone network (PSTN) and provides internal communication for a business.
For corporate or enterprise applications, a private telephone exchange is termed a private branch exchange (PBX), which connects to the public switched telephone network. A PBX serves an organization's telephones and any private leased line circuits, typically situated in large office spaces or organizational campuses.
A CPE can be an active equipment, as the ones mentioned above, or passive equipment such as analog telephone adapters (ATA) or xDSL-splitters. This includes key telephone systems and most private branch exchanges. Excluded from the CPE category are overvoltage protection equipment and pay telephones. Other types of materials that are necessary ...
Telephone exchange equipment (44 P) Pages in category "Telephone exchanges" ... Private branch exchange; PRX (telephony) R.
PRIVATE BRANCH EXCHANGES: 540-000-000: Sections Applying to More Than One 700 Series PBX Including Centrex CU, Attendant Equipment for Centrex CO, and "TOUCH-TONE®" Calling PRIVATE BRANCH EXCHANGES: 541-000-000: 700C and 710C PBX PRIVATE BRANCH EXCHANGES: 542-000-000: 701- and 711-Type PBX PRIVATE BRANCH EXCHANGES: 543-000-000: 702A PBX ...
Private branch exchange, a telephone exchange that serves a particular business or office; PBX Funicular Intaglio Zone, a 2012 album by John Frusciante; PBX, a rewrite of the Project Builder IDE for Mac OS X systems, now known as Xcode; PhotoBox, a digital photo printing service
3CX, Inc., is a software development company and developer of the 3CX Phone System. The 3CX Phone System is a software private branch exchange based on the SIP (Session Initiation Protocol) standard to allow calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services.