发明名称 Simplified Method for IMS registration in the Event of Emergency Calls
摘要 Simplification of IMS registration in the event of emergency calls is made possible by apparatuses and a method for setting up an emergency-call connection from a terminal to an IMS via a network visited by the terminal, where, if the terminal is already registered in the IMS, setup of an emergency-call connection dispenses with IMS registration of the terminal in the IMS for this emergency-call connection if a comparison between a network identification for the visited network, of which the terminal was notified when it registered in the visited network, and a network identification for the terminal's home network reveals a match between these network identifications.
申请公布号 US2009098851(A1) 申请公布日期 2009.04.16
申请号 US20070226738 申请日期 2007.04.13
申请人 NOKIA SIEMENS NETWORKS GMBH & CO. KG 发明人 LIEBHART RAINER
分类号 H04M11/04;H04L12/66;H04W4/22;H04W80/10;H04W84/02 主分类号 H04M11/04
代理机构 代理人
主权项
地址