About the size of a deck of playing cards and weighing less than 80 grams (3 ounces), the spa-1001 comes with the full slate of advanced features from sipura technology’s world-class voip platform implementation. The spa-1001 includes an ethernet interface for conncetion to a home or office lan. The spa-1001 can be provisioned via software controlled by the service provider or the end user.Installed by the end user and remotely provisioned, configured and maintained by the service provider, each spa-1001 converts voice traffic into data packets for transmission over an ip network. Sipura spa1001 unlocked 1 fxs voip adapter routers & adapters. Teh spa-1001 can be used in consumer and business ip telephony service offerings including full-featured ip centrex. The spa delivers clear sounding voice and reliable fax calling through ist implementation of internationally recognized standards for voice and data networking. Terminating impedance agnostic 8 settings. Call waiting, cancel call waiting. Speed dialing of 8 numbers / addresses. Power adapter (input 100-240ac, worldwide compatible). Also, if you need ayn parts in larger amount, please send me a message and i will send you the price.