Mobile Agent Technology potentially has a very wide spectrum of the utilization. It is often used in these network's areas where making operations without any user's attendance is seen as benefits [3, 5, 6, 7]. This article focuses on the possibility of the usage mobile agents (MAs) for data transmission management. Mobile agents, in described system, are responsible both for splitting and for merging data stream that is created between target service and end-user. This process is fully hidden from end-users. The system is the part of MAO Service (Mobile Agent Offering Service), which the main purpose is to allow end-users to "pay and enjoy" the contents located on remote hosts (i.e. pay not only for the access to the information but also for the maintenance of the data stream that fulfils all end-users' requirements like QoS parameters).