What is the difference: Telephone, PABX (Intercom) & VOIP (voice over internet protocol) ?
a�?Telephone is an instrument which reproduce sound at a distance through the help of electricity. It is one of the easiest and common used device of oral communication. It facilitates quick exchange of information through personal talk. There are two types of telephonic communication like external telephonic communication and internal telephonic communication. In the former communication an employee of the organization talks with another outside the organizational building. In the later communication an employee talks with another within the organization. Because of this nature of telephonic communication, it has been told that it is quickest and convenient means of external and internal communication. There are three types of telephone connections like direct exchange line, private branch exchange and intercom.
Intercom system of communication has become very popular in our country. It is used to supplement private branch exchange system and operates without an exchange. As this system is not connected with telephone exchange, no permission is needed from the post and telegraph department for the use of intercom service. Multicore cables and telephone receivers are used in this system. Push buttons are used in the receiver set. By putting the button instant connection is obtained with any one of the circuit. If he wants to talk a number of persons at a time he can push the conference key available in the intercom. Today computerized intercom system are developed.a�? ARKUPAL ACHARYA
The PABX is very commonly used in businesses and hotels, as communication is very important. The receptionist no longer has to walk to the bosses office to inform him about a visitor, she can easily lift her phone and talk to the boss at absolutely no additional fees. Research has shown that workers spend 30% of their productive hours moving from one internal office to the other to share information and chat. This can significantly be reduced with the use of the PBX solution for office.
The traditional PBX system is the analogue PBX which makes use of a single pair or double pair telephone cables. With the traditional system, the brainwork (processing) is done solely at the central console and the various phones connected directly to a dedicated port in the PABX console. The traditional PBX system currently faces some challenges in todays technological world:
Auto Attendant, Call Recording and Voicemail: to configure these features on an analogue PABX, extra boxes are required for each of them and the settings becomes very cumbersome.
VoIP however is running your voice communications over the same LAN or WAN network without having to incur an extra cost for cabling. It is very easy to set up and requires minimum maintenance over the period. VoIP is an advancement in the world of telephony because of its integrability into other platforms, i.e. you can easily use your computer as the telephone over the same network or you can fuse the VoIP into your Video Conferencing needs. You can have your calls rerouted to your cell phone automatically ones you are not seated in the office. Your Voicemail, Auto attendant, etc are all just settings on the Sever which doesna��t require an extra console at a cost. Each phone on the VoIP network is a a�?minicomputera�? and has some processing power that makes the work of the administrator very easy.
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