Add to ORKGThis bachelor thesis is in the first part focused to research of actual IPTV technologies in global and mobile networks and their processing. It compares IPTV's adventages and disadventages and as well presents actual czech and world-wide offers. There are also discussed other possibilities of mobile TV spreading. Second part deals with the simulation tool NS2 (Network Simulator 2), its description, installation and implementation of extension package for UMTS network simulations. There is created and described simulation with relatively simple scenario to illustrate possibilities of this extension. All practical demonstrations and the installation source codes, which had to be corrected because of compatibility with new versions of operati...