A Voice network can be defined as a communication network utilized to send voice. Now the incorporation of voice in to data networks becomes a reality.

IP Telephone system
IP (Internet Protocol) telephony is used to explain technologies that utilize a set of protocols to exchange fax, voice, and different information forms, previously sent through Public Switched Telephone Network (PSTN).

Contact Center Solution
It is a set of functionalities, functions, and services that enable different businesses to complete their customer experience objective, which concentrates on handling as well as managing incoming calls. It is based on called number along with a linked handling database.

PA System
A public address (PA) system can be defined as an electronic system consists of amplifiers, microphones, loudspeakers, etc. It augments the volume of a human voice, any musical instrument, or any recorded sound or music. In any public place, PA systems are utilized.