首页> 外国专利> METHOD FOR LAWFUL INTERCEPTION IN THE CASE OF CALL FORWARDING IN A PACKET-ORIENTED TELECOMMUNICATIONS NETWORK

METHOD FOR LAWFUL INTERCEPTION IN THE CASE OF CALL FORWARDING IN A PACKET-ORIENTED TELECOMMUNICATIONS NETWORK

机译:面向分组的电信网络中的呼叫转移情况下的合法拦截方法

摘要

The invention relates to a method for lawful interception in the case of call forwarding (AW_TlnB) in a packet-oriented telecommunications network (TK1, TK2, TK3), in which switching functions (S-CSCF1, . . . , P-CSCF3) are made available by servers. The additional aim in this telecommunications network (TK1) is to monitor connections of a subscriber (Tln B) with call forwarding (AW_TlnB) by means of lawful interception. In this case, monitoring (ÜW_TlnB) of the connections of the subscriber (Tln B) is notified to a first switching function (S-CSCF1) which is responsible for a called subscriber (Tln B) with call forwarding (AW_TlnB). The first switching function (S-CSCF1) then writes (23) a tag for said subscriber (Tln B) to a predetermined parameter of a switching protocol. Only then is signalling of call forwarding (AW-TlnB) carried out to a second switching function (S-CSCF2) which is responsible for a calling subscriber (Tln A) and the connection is then forwarded to a third switching function (S-CSCF3). In this case, this third switching function (S-CSCF3) then identifies and initiates the monitoring (ÜW_TlnB) of the called subscriber (Tln B) on the basis of the predetermined parameter of the switching protocol. The major advantage of the method according to the invention is that it is still possible for a department or authority who is empowered to carry out monitoring to monitor (ÜW_TlnB) the contents of connections in a packet-oriented telecommunications network (TK1) even in the case of call forwarding (AW_TlnB).
机译:本发明涉及一种在面向分组的电信网络(TK1,TK2,TK3)中在呼叫转移(AW_TlnB)的情况下合法监听的方法,其中交换功能(S-CSCF1,...,P-CSCF3)由服务器提供。该电信网络(TK1)的另一个目标是通过合法侦听监视用户(Tln B)与呼叫转移(AW_TlnB)的连接。在这种情况下,监视用户(Tln B)的连接(ÜW_TlnB)到第一交换功能(S-CSCF1),该功能负责呼叫转移(AW_TlnB)的被叫用户(Tln B)。然后,第一交换功能(S-CSCF1)将用于所述用户(Tln B)的标签写入(23)交换协议的预定参数。只有这样,呼叫转接(AW-TlnB)的信号才会传递到第二个交换功能(S-CSCF2),后者负责主叫用户(Tln A),然后将连接转发到第三个交换功能(S-CSCF3) )。在这种情况下,该第三交换功能(S-CSCF3)然后根据交换协议的预定参数来识别并启动对被叫用户(Tln B)的监视(ÜW_TlnB)。根据本发明的方法的主要优点在于,被授权进行监视的部门或机构甚至可以在面向分组的电信网络(TK1)中监视(ÜW_TlnB)连接的内容。呼叫转移(AW_TlnB)的情况。

著录项

  • 公开/公告号PL2005699T3

    专利类型

  • 公开/公告日2018-05-30

    原文格式PDF

  • 申请/专利权人 HMD GLOBAL OY;

    申请/专利号PL19820077266T

  • 发明设计人 PAULIS HERBERT;SPALT BERNHARD;

    申请日2007-03-07

  • 分类号H04L29/06;H04L12/22;H04M3/22;H04M3/54;H04M7/00;

  • 国家 PL

  • 入库时间 2022-08-21 12:50:37

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