Communication management system for recording communications sessions

There is the need for a method for recording a telephone communication session performed over a computer network, such as LAN or WAN. A method is disclosed for monitoring a computer network to detect data packets including audio or video data, such packets being part of a communication session, for storing these packets and for reconstructing the communication session upon request. To enable a system to store packets independently of the protocol used to set up the communication session, for example in a Voice over IP environment, the system includes a link to the gatekeeper (114) of the computer network.