French TV software player SoftAtHome launched a smart box for O2 Czech Republic at last week’s IBC event, built by KaonMedia on a Broadcom chip. It also showed off “voice” capabilities, cut an extended deal with Orange and extended its Smart WiFi to include Quantenna chips. SoftAtHome is also behind O2 Czech’s upgrade to its WiFi system to support 250Mbps VDSL3 (or V-Plus), which uses 35 MHz of spectrum in the baseband over twisted pair together with vectoring to get the best outcome. Performances can go up to 360Mbps, dependent on the distance the device is from the home. O2 Czech Republic was acquired from Telefonica in 2013 by local interests, but still uses the O2 brand. The SoftAtHome software…