A method for operating a packet-oriented communications system and for classifying a packet data stream as well as network node of a packet-oriented communication system

摘要

The invention relates to an effective method for operating a packet-oriented communication system and for classifying a packet data flow according to the following steps: Measurement values (10) relating to the size, the temporal intervals and the transmission direction of the data packets of the packet data flow are detected, said measurement values (15, 20, 25, 30) are examined and if the data packets having a similar size are transmitted bidirectionally, in a discontinued manner and at regular, short temporal intervals, respectively, only in individual data transfer sections that are separated by pauses, the temporal length of the individual data transmission sections is examined and the temporal length of the individual pauses is also examined, the temporal length of the data transfer sections and the temporal length of the pauses are determined (40) whether they are statistically distributed in accordance with predefined reference distributions having characteristic parameters for voice telephony, and if this is the case with a significant difference (45) above the threshold value, the packet data flow is classified as voice telephony (50). The invention also relates to a network node of a packet-oriented communication system.