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.
Integration of real time products, such as chat, telephony (including IP telephony), video conferences, call control and speech recognition, together with “un-real” time products such as voice mail, SMS messages and Fax. “Unified Communications” is not a standalone product, but a set of products, which present a constant user’s interface among many devices and media types.