marshall has a complete set of tools you can use together with your phone for Skype please check http://www.mxlmics.com/microphones/mobilemedia/

also SDI HD and HDMI converters with USB 3 out put , no drivers needed, converter will be recognized by Skype, so you can use SDI-HD and HDMI camera's for Skype, and with a 4G dongle or router you will have your HD uplink set in the field VAC-11HU3 and VAC-11SU3 http://www.lcdracks.com/racks/Cross-Converters/