1.You need to have an EZUC+ account to use this application 2.The detailed description is as follows: EZUC+ is mobile unified communications. EZUC+ is cloud enterprise communications. EZUC+ is the human corporate communication platform. EZUC+ is a real-time, interactive platform. EZUC+ is an open, standards-based, and 100% software solution. EZUC+ can be a carrier cloud value-added service. EZUC+ supports public or private cloud deployment. EZUC+ enables industry application development for end