Sentel is a software development company which specialises in Telecommunications Expense Management (TEM). The software Sentel provides allows large organizations such as health trusts to reduce both their landline and mobile costs by reporting on usage and identifying areas where costs savings can be made. Unified Communications is emerging as the new approach to sharing information inside large organisations. The data or broadband networks inside large organisations will be used for the transmission of all kinds of information including documents, video calls etc. but crucially to Sentel’s business, to telephone calls. To provide TEM services under this Unified Communications approach, with FUSION Sentel needs to integrate the Microsoft Lync data interface product into its existing product and provide data encryption algorithms to prevent potentially sensitive data from being intercepted while it is being gathered.