With its uncompromising technology, reliability and self-contained architecture, Resideo's LYNX Plus is an easy-to-install, self-contained system. LYNX Plus is a combination control panel, keypad, siren, dialer, two-way voice system and speakerphone in one. It offers full Contact ID information to your central station via TELCO, Internet GSM communications using the 7847i-L or GSMVLP. It also offers two-way voice over GSM radio using the GSMVLP. The GSM radio or Internet communications module easily install inside the same plastic case as the LYNX Plus with no additional enclosures to mount. The new communications options give you the flexibility you need to address the emergence of VoIP, POTS migration to cellular and the growth of digital radio networks.