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.
Panasonic KX-NCP, as well as Panasonic KX-TDE are IP-systems using the principle of IP-packet switching and supporting major protocols of IP-telephony. Panasonic KX-NCP offers all benefits and functionality KX-TDE series.