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.
In January 2012, the North American division of Panasonic, a market leader in phone systems for small businesses announced a new desktop SIP-phone KX-UT670 and thus expanded its line of SIP UT phone series. This newest offering is the first desktop SIP – phone made by Panasonic, with an open source operating system allowing you to deploy integration solutions for business communications.