In unified communication technology, a message is made up of packets of information that are to be transferred. For this revolutionary simplification, messages could be transmitted in the form of e-mails, voicemails, phone calls, text messages, or instant messages. According to many studies in the IT sector, employees in companies today receive more than 100 messages a day through various channels. unified communications combines all of these communication channels in a solution so that efficiency and clarity of communication and information exchange can be substantially increased. It facilitates the management of contacts for the end user. In the previous chapters, I have shared with you that the central element of unified communication solution from Microsoft is the presence status, which is also available in Microsoft's free instant messaging products such as Live Messenger or also new in the product family, Skype (which is the replacement of Live Messenger...