IGEL OS 11.02 IGEL OS Reference Manual Sessions Citrix Citrix Global Unified Communications Current: Skype for Business PDF Download PDF Download page Skype for Business. Current page All pages Skype for Business Menu path: Sessions > Citrix > Citrix Global > Unified Communications > Skype for BusinessThe HDX RealTime Media Engine is required for using Skype for Business in a HDX/ICA session.HDX RealTime Media Engine ☑ The HDX RealTime Media Engine is active. (Default) ☐ The HDX RealTime Media Engine is not active. ×