IP Auto Alarm Dialer: Calls your Cell Phone using your Router NO MONTHLY FEES for Voice Call and SMS Messaging when IP Alarm Dialer send you notification your Business/Home Alarm System has been set off! VOICE DIALS AND SMS TEXTS ARE FREE and can be sent to cell phones or landlines over your existing internet connection. NO CONFIGURATION REQUIRED, JUST PLUG INTO INTERNET connection and it will automatically configure connectivity settings. ADD UP TO 10 PHONE NUMBERS, CELL OR LANDLINES are easily programmed over your network using your local computer. WORKS WITH HONEYWELL VISTA, ADT, DSC and any Alarm Panel that uses 9-18VDC Siren Output.