Open distributed system to provide real-time communication service over web

Nowadays, corporate companies use different applications and service providers to take advantage of services such as instant messaging, e-mail, social networks and company-wide calls. These service providers are demanding higher licensing fees for additional features needed by the institutions. For example, the ability to call landlines as well as in-house calls can greatly increase the costs of the corporate companies. Moreover, there is no application in the market that provides ease of use by collecting all these services under one roof. In this work, a system has been designed to ensure that all these shortcomings are eliminated and landlines can be called. The differences and advantages of the system from existing systems are discussed.