System and method for determining whether a CSCF should act like I-CSCF or as s-CSCF.

摘要

A network system comprising a wireless network, a first element (2) network, and at least one second element (3) network, with the network element devices that perform control functions call status, being the second element (3) network adapted to operate in at least two different modes, wherein the first element (2) network is adapted to send a message to the second network element, the second element (3) network is adapted to set the mode in response to whether there is information in the message or not, information indicating whether a processing of a location request must be made, or has already been done.