It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
With the release of Plantronics CS520 its producer once again raised the bar requirements for headsets for desk phones, ensuring users in a new degree of freedom of movement. This model features advanced audio technology and stylish design along with high reliability. For long conversations Plantronics CS520 is the best solution in an active call-center or in the office. The presence of two speakers in this model ensures that no external noises will interrupt an important conversation.