EMERGENCY CALL DOMAIN TRANSFER IN A MOBILE COMMUNICATION SYSTEM

摘要

Emergency call domain transfer in mobile communication system There are provided measures for enabling/realizing an emergency call domain transfer in a mobile communication system. Such measures exemplarily comprise registration of an address of an emergency function entity handling an emergency call of a user equipment in association with an emergency call transfer number for the emergency call and an identifier of the user equipment, which registration can be triggered by a request for the emergency call, e.g. during setup of the emergency call, and which registration enables that the address of the emergency function entity can be retrieved upon a query including the emergency call transfer number for the emergency call and the identifier of the user equipment, e.g. during access transfer of the emergency call from a packet-switched domain to a circuit-switched domain.