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    • 2. 发明授权
    • Technique for providing redundant capability in a personal mobile
communication system
    • 在个人移动通信系统中提供冗余能力的技术
    • US5598457A
    • 1997-01-28
    • US316613
    • 1994-09-30
    • Mark J. FoladareShelley B. GoldmanAslam Y. KhanLyndon M. PanDavid P. SilvermanYao-Chung TsaoRoy Philip Weber
    • Mark J. FoladareShelley B. GoldmanAslam Y. KhanLyndon M. PanDavid P. SilvermanYao-Chung TsaoRoy Philip Weber
    • H04M3/42H04Q3/00H04W4/18H04W8/26H04W24/04H04W28/04H04W88/02H04Q7/38
    • H04W24/04H04L69/40H04M3/4228H04Q3/0029H04M3/42229H04Q2213/13374H04Q2213/13513H04Q2213/13547H04W4/18H04W8/26H04W88/02
    • In providing personal telephone calling capability as a service, for reliability purposes, it is necessary to have available several independent meet-me systems, to provide redundant capability in the event of a failure of any one of them. Each meet-me system has at least 1) one meet-me bridge and 2) its own telephone trunks directly connecting it to the telephone network over which it receives return calls. A problem with doing so is insuring that the return call is properly bridged to the caller's call when a) the telephone number for the return call is a predetermined translatable telephone number and b) the particular one of the meet-me systems to which the caller's call is connected is determined only upon receiving in the network the call placed by the caller. To overcome this problem, at least each time a caller's call is routed to different one of the meet-me systems, the network routing data base which translates the dialed translatable telephone number of the return telephone call into a network routing telephone number is updated so that it will direct a return call for the caller's call to the same meet-me system to which the caller's call was routed. Advantageously, a hot-spare standby is not needed for each meet-me system. Instead, one additional meet-me system provides the capability to back-up the failure of any single one of the other meet-me systems.
    • 为提供个人电话呼叫能力作为服务,出于可靠的目的,有必要提供几个独立的会议系统,以便在发生任何一个失败的情况下提供冗余能力。 每个会议系统至少有一个会议桥,2)自己的电话中继线直接连接到接收返回电话的电话网络。 这样做的一个问题是确保当a)用于返回呼叫的电话号码是预定的可翻译电话号码时,返回呼叫被适当地桥接到呼叫者的呼叫,以及b)呼叫者的 只有在网络中接收到呼叫者发出的呼叫才能确定呼叫连接。 为了克服这个问题,至少每当呼叫者的呼叫被路由到不同的会议系统时,将更改拨号的可转换电话号码的网络路由数据库转换成网络路由电话号码,从而被更新 它会将呼叫者的呼叫定向到与路由呼叫者的呼叫相同的会议系统。 有利地,每个会议系统不需要热备用待机。 相反,一个额外的会议系统提供了备份其他任何一个会议系统的故障的能力。