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2. 发明授权

US5712908A Apparatus and method for generating call duration billing records utilizing ISUP messages in the CCS/SS7 telecommunications network 失效
标题翻译：用于在CCS / SS7电信网络中利用ISUP消息产生呼叫持续时间计费记录的装置和方法
公开(公告)号：US5712908A
公开(公告)日：1998-01-27
申请号：US649561
申请日：1996-05-17
申请人： Anthony J. Brinkman , Yi Lin , Michael H. Penrod , Nancy L. Sweet , Linda Trout-Jordan , Gerald J. Wardzinski
发明人： Anthony J. Brinkman , Yi Lin , Michael H. Penrod , Nancy L. Sweet , Linda Trout-Jordan , Gerald J. Wardzinski
IPC分类号： H04M15/00 , H04Q3/00
CPC分类号： H04M15/90 , H04M15/00 , H04Q3/0029 , H04M2215/016 , H04Q2213/1313 , H04Q2213/13176 , H04Q2213/13216 , H04Q2213/13345
摘要： A computer platform with a Call Billing application thereon monitors linksets of the CCS/SS7 network extending between Local Exchange Carrier (LEC) Signaling Transfer Points (STP) and Competitive Access Provider (CAP) switches such as End Offices (EO) and Tandem Offices, where the CAP switches have access to the LEC switching offices in the LEC area for providing service therein. The platform receives SS7 Signal Units (SU) copied from the linksets and filters the SUs to pass ISUP MSUs of message types Initial Address Message (IAM), Exit Message (EXM), Address Complete Message (ACM), Answer Message (ANM), Reset Circuit Message (RSC) and Release Message (REL). The application correlates a received IAM against subsequently received and filtered ISUP messages in accordance with correlation search keys Originating Point Code (OPC), Destination Point Code (DPC) and Circuit Identification Code (CIC) so as to correlate the filtered ISUP MSUs that originate, set up and terminate a call. The elapsed time of the call is determined based on the difference between a call start time and a call end time where the start time is predicated on a call originating or setup MSU and the end time is predicated on a call terminating MSU. The call type can be for either "access" or "conversation" elapsed time depending on call direction and destination. Different ISUP MSU criteria are utilized for the two call types. For call type access, ACM may be utilized on which to base the start time, whereas for call time conversation, ANM may be utilized as the basis for the start time.
摘要翻译：具有呼叫计费应用程序的计算机平台监视在本地交换运营商（LEC）信令转移点（STP）和竞争接入提供商（CAP）交换机之间延伸的CCS / SS7网络的链路，例如终端办公室（EO）和串联办公室，其中CAP交换机可以访问LEC区域中的LEC交换局，以在其中提供服务。平台接收从链接集复制的SS7信号单元（SU），并过滤SU以通过消息类型的初始地址消息（IAM），退出消息（EXM），地址完成消息（ACM），应答消息（ANM）的ISUP MSU，复位电路消息（RSC）和释放消息（REL）。应用根据相关搜索密钥起始点代码（OPC），目的地点代码（DPC）和电路识别码（CIC）将接收到的IAM与随后接收的和经过滤的ISUP消息相关联，以便将发起的过滤的ISUP MSU相关联，设置和终止呼叫。呼叫的经过时间是基于呼叫开始时间和开始时间是基于呼叫发起或建立MSU的呼叫结束时间之间的差来确定的，结束时间是基于呼叫终止MSU的。呼叫类型可以是根据呼叫方向和目的地的“访问”或“通话”经过时间。两种呼叫类型使用不同的ISUP MSU标准。对于呼叫类型接入，可以使用ACM来基于开始时间，而对于呼叫时间会话，可以使用ANM作为开始时间的基础。

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