LINKSYS analog terminal adapter (ATA) for residential applications offers several advantages over other VoIP hardware. This ATA is made specifically to interface your home telecom needs and your alarm security needs into one unit with separate ports. Requirements: -Broadband connection (DSL or Cable) and appropriate modem -Windows 98 or newer PC with a Network Interface Card (NIC) or a USB port Or, a Macintosh or Linux Computer with a NIC or USB port -Telephone Vontronix offers three plans to meet your communications needs (Sign up on their internet site. Requires a credit card). PLAN - US - Canada Our most popular plan is the $19.95 unlimited plan. Call anywhere in the USA or Canada for one low fixed rate. This plan includes our fantastic International rates should you need to call overseas. PLAN - US - Canada + 30 International If you call overseas often, then you might benifit from our $29.95 plan that includes unlimited calls to the USA and Canada as well as these countries. Argentina - Buenos Aires, Australia, Austria, Brazil - Rio de Janiero / Sao Paolo, Canada, Chile, China (incl. cellular), Denmark, France, Germany, Greece, Hong Kong (incl. cellular), Ireland, Israel, Italy, Mexico - Guadalajara / Mexico City / Monterey, Netherlands, North Ireland, Norway, Portugal, Russia - Moscow / St. Petersburg, Scotland, Singapore (incl. cellular), South Korea, Spain, Sweden, Taiwan, United Kingdom, Vatican City, Wales. PLAN - $12.95 + 1.9 cpm For lite users, and for all businesses, the $12.95 plan is what you need. For just $12.95 you get all the advanced features, then just pay 1.9 cents per minute for each minute you talk. The same great international rates apply. If you talk less than 375 minutes per month, this plan will save you money. Vontronix charges a one time activation fee of $19.95. This unit can be self-installed, or if you are in NJ, we offer installation for $99.95 to our monitored customers. Others: $65.00 per hour plus travel time.