A Design of IP PBX Phone System
In order to integrate the telecommunications network and IP network, providing companies with a unified voice services, a design of IP PBX phone system is proposed. On the basis of VoIP, this design implements most of the traditional PBX functions. It provides function-code functionality allows user to directly control phone; provides user-trunk-LLDC configurations to manage user’s privilege; provides a powerful and flexible IVR system; provides SIP phone and SIP trunk support. It also supports most call features such as black list, speed dial code, forward, transfer, pick-up, can meet most companies’ requirements.
X. Song and M. H. Lian, "A Design of IP PBX Phone System", Advanced Materials Research, Vols. 588-589, pp. 1222-1225, 2012