Your source for the most up-to-date terms, definitions, and acronyms for and about internet service providers.
Search for an ISP term
IP PBX
Last modified: Thursday, May 04, 2006
Short forInternet Protocol Private Branch
eXchange, a telephone switch that supports VoIP. An IP
PBX provides services similar to PBX services, but over
data networks like a LAN or
WAN rather than circuit-switched networks. IP PBX
typically can switch calls between VoIP on local lines
or between VoIP and traditional telephone users in the same way PBX does. IP PBX
may also be seen abbreviated as IPPBX or IP/PBX.
