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The project is building from scratch a basic chatting system: server + Client. Server will be UBUNTU 12.04, with 3 clients software for windows7, android 2.2 and higher and and IOS. Programming language should be C++. Functions required for Clients are very basic: sing in, sign out, add contact, delete contact, show contacts status, send online messages. A control panel client software will be developed to manage users. Data on server will be stored on mysql database. Full well commented source code should be delivered with good documentation.