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    • 1. 发明授权
    • System for call forwarding from a first communication network to a
second remote communication network and a system for virtual extension
of a mobile communication network by at least a second remote
communication network
    • 用于从第一通信网络到第二远程通信网络的呼叫转移的系统和用于由至少第二远程通信网络虚拟扩展移动通信网络的系统
    • US5734700A
    • 1998-03-31
    • US509084
    • 1995-07-31
    • Hans HauserPatrik Ljungstrom
    • Hans HauserPatrik Ljungstrom
    • H04M3/54H04W8/06H04W8/12H04Q7/20H04Q7/22
    • H04W8/06H04M3/54H04W8/12
    • One embodiment of the invention is related to a system for virtual extension of a mobile communication network by at least a second, remote mobile communication network, wherein one of communication network is of the GSM (Global System for Mobile Communications) type, including a bridgehead between the first and second mobile communication network, said bridgehead serving as an internetwork junction to one of said mobile communication networks of the GSM type (transition network). The bridgehead acts as a Visitor Location Register (VLR) for another mobile communication network and as a Home Location Register (HLR) for the transition network, if a subscriber of the other mobile communication network is in the range of the mobile communication networks of the GSM type and acts as an HLR for the other mobile communication network and as a VLR for the transition network, if a subscriber of the mobile communication networks of the GSM type is in the range of the other mobile communication network.
    • 本发明的一个实施例涉及一种用于由至少第二远程移动通信网络虚拟扩展移动通信网络的系统,其中通信网络中的一个是GSM(全球移动通信系统)类型,包括桥头堡 在所述第一和第二移动通信网络之间,所述桥头作为到所述GSM类型(转换网络)的所述移动通信网络之一的互联网络连接。 如果其他移动通信网络的用户位于移动通信网络的移动通信网络的范围内,则桥头头作为用于另一移动通信网络的访问位置寄存器(VLR)和用作转换网络的归属位置寄存器(HLR) GSM类型,并且如果GSM类型的移动通信网络的用户在其他移动通信网络的范围内,则作为其他移动通信网络的HLR和作为转换网络的VLR。