A private branch exchange (PBX) is a telephone sys- tem within an enterprise that switches calls between users on local lines, while enabling all users to share a certain number of external phone lines.
An IP-PBX is a business telephone system which is designed to deliver voice over a data network. a major part of the operability of IP-PBX is provided in software, hence making it comparatively inexpensive and simple to integrate additional phone functions with business applications such as conferencing, interactive voice response.
Samm Cooper Security Services PBX/IP-PBX systems are scalable and can easily handle a large number of phone lines and extensions.
