Short for
Internet 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.
See also Internet telephony and PBX.
