Communication means have evolved a great deal since the advent of telephone by the great Alexander Graham Bell. Since then, the need to communicate has increased tremendously due to the process of Liberalization, Privatization and Globalization. This has resulted in the expansion of business all across the globe and thus, conference call systems have been in great demand by both business and non-business organizations.

In order to tell one's thoughts, ideas and beliefs to other individual present at a distant place, there is a need to have a certain communication system in place which will enable the person to communicate his thoughts to other people. Conference call systems help people to participate in all their important conferences and meetings with the help of telephone connectivity.

There are many advantages of using conference call systems. They help the members of various organizations to participate in conferences without being physically present at a common place of conference. The members don't have to travel places; they can do so from the comfort of their office cabins. It helps the users to be flexible in their work approach and provides them the facility to hold proper discussions and supports in appropriate decision making.

The quality of a conference call hugely depends upon the caliber of the audio conferencing equipment used by the conference call user. There are many private brands in the international telecom market like Polycom, Avaya, etc, which are constantly producing new and innovative conferencing products which enhances the whole teleconferencing experience of the end user.

The highly in demand audio conferencing equipment is Polycom's Soundstation2. It is a conference call phone which is the latest offering by Polycom. It has all the basic features like: pause, mute, hold, flash, redial, sped dial, volume control, caller id, wide display panel with extended back light and in-built phone memory for storing all important phone numbers and extension numbers.

The best part of the modern day teleconferencing equipment is that, they are resistant to all kinds of disturbances that are created by wireless equipments like radio, mobile phone, etc, present nearby the equipment.

The quality of microphone used in teleconferencing equipment is very important as the clarity in voice solely depends on the sensitivity of the microphone. The microphone used in latest conference call phones is highly sensitive with long range. They are omni-directional, that is, they have the ability to catch the voice of the conference speaker from all directions.

Thus, communication technology has evolved a great deal since the first telephone was invented.