Driven by the increasing popularity of Voice over WiFi, the Wi-Fi Alliance announced the Wi-Fi Certified Voice-Personal program to ensure quality voice over WiFi links. According to the Wi-Fi Alliance, estimates from analyst firms forecast shipments of WiFi/cellular converged phones to number between 250 and 350 million units in 2011. According to Victoria Fodale, manager with research firm In-Stat, " We are seeing increasing expectations from wireless subscribers that handsets include WiFi technology to handle both voice and data, and carriers are responding in kind with an interesting array of offerings combining WiFi and cellular service." Release