METHOD AND NETWORK ENTITY FOR SELECTING FOR A SUBSCRIBER A CALL SESSION ESTABLISHING SERVER TO BE REGISTERED WITH IN A VOICE OVER INTERNET PROTOCOL NETWORK

摘要

Method and network node for selecting for a subscriber a call session establishing server to be registered with in a VoIP network. For the subscriber in a memory a subscriber list is maintained including for further subscribers a ranking representative of the relative frequency said subscriber has been engaged with that further subscriber in a session via the VoIP network. In the memory a server list is maintained and updated including identifiers of call session establishing servers, and for each of the listed call session establishing servers a ranking representative of the cumulative relative frequencies further subscribers registered with that call session establishing server have been engaged with the subscriber in a session via the VoIP network. From the server list the call session establishing server with the highest ranking is selected for the subscriber to be registered with.