In this paper, offers a technique of modelling the intensity of the real time traffic in channel telecommunication networks with switching packets which is based on exponential distribution of the moments of the beginning of transfer and duration of transfer of real time streams. The implementation of the specified technique allows creating the adequate models simulating a process of dynamic change of intensity of the real time traffic in channel telecommunication networks with switching packets. Ключевые слова: traffic, real time stream, exponential distribution, technique of modelling, telecommunication networks with switching packets.