Basically, IPPBX is an open standard PBX system over internet protocol (IP) network.
It not only unites an organization's many locations - including mobile workers - into a single converged network, but also promises cost savings by combining voice and data on one single network that can be centrally maintained, as well as by eliminating toll expenses for calls between locations. ZONE offers IPPBX solutions of different brands such as SNOM, 3CX, NewRock, MYPBX, A1Pros, Asterisk, Trixbox and Elastix. Different brands
have their own advantages under different environment.