Advanced Implementation of IP Telephony at Czech Universities

IP telephony is convenient way of communication and brings number of benefits. One of them is the fact that many services can be implemented in a original way and it opens new field of research and is a challenge for designers of communication solutions especially based on open-source platform. This paper describes proposal and advanced implementation of IP telephony which have been arisen in Czech academical environment, concretely in a group of IP telephony acting under Czech education and scientific network association. Author is a senior researcher in this group and he decided to describe the most considerable voice over IP implementations at Czech universities and share knowledge with other experts interesting in IP telephony.