I had downloaded the Polycom App for Video Conference connections and it works pretty well on 3G and home WiFi networks. Work is interested in using the IPad for video calls via WiFi and over the Verizon portable WiFi card that just needs a power source. When I register with the Verizon WiFi card I can make a video connection over 4G but am unable to receive audio/video from the other endpoint. Does anyone elkse use the IPad for business video calling or have used the Verizon WiFi card for video calling? Thanks.