Presence server for communication network, comprises quality communication device, integration device and messaging device for supplying quality of service information to subscribers

摘要

At least one quality communication device can communicate with an information source (13, 15, 17, 19, 21, 23, 27, 29, 31, 33) in a communication network (3, 5, 7, 9, 11) in order to receive information relating to quality of service (QoS) for different sessions which the subscribers can initiate. An integration device connected to the quality communication device integrates the information relating to quality of service with the presence information supplied by the presence server. A messaging device supplies the quality of service information to the subscribers.