http://www.zoomtel.com/products/5715.html
http://www.zoomtel.com/graphics/datasheets/adsl/USB_3104_5510B.pdf
http://www.zoomtel.com/products/adsl_overview.html
http://www.zoomtel.com/products/5760.html
http://www.zoomtel.com/products/5751.html
http://www.zoomtel.com/products/5754.html
http://cxsecurity.com/issue/WLB-2013070069