公开(公告)号：US5920611A

公开(公告)日：1999-07-06

申请号：US724111

申请日：1996-09-30

Applicant: Robert Mark Howell

Inventor： Robert Mark Howell

IPC: H04M1/56 ,  H04M1/57 ,  H04M3/22 ,  H04M3/36 ,  H04M3/54 ,  H04M1/24 ,  H04M3/42

CPC classification number: H04M3/36 ,  H04M3/2281 ,  H04M3/54 ,  H04M1/56 ,  H04M1/57

Abstract: A method of intercepting the incoming and outgoing calls of a telecommunications subscriber. The call activity of the telecommunications line of the subscriber is monitored by a call processor of a telecommunications switch and predetermined types of call activity are recorded by a recording device. The switch monitors the call activity of a second telecommunications line upon the detection of a predetermined call feature occurring for the subscriber and the recording device records predetermined types of call activity on the second line upon the monitoring of the second line. The switch may also switch, upon the detection of the predetermined call feature, from monitoring the call activity of the subscriber line to monitoring the call activity of the second line. The switch may also switch the recording device from recording the call activity of the subscriber line to recording the call activity of the second line. This may be done by switching the connection of the recording device from the subscriber line to the second line.

Abstract translation: 一种拦截电信用户的呼入和拨出呼叫的方法。 用户的电信线路的呼叫活动由电信交换机的呼叫处理器监视，并且记录设备记录预定类型的呼叫活动。 在检测到针对用户发生的预定呼叫特征时，交换机监视第二电信线路的呼叫活动，并且在监视第二线路时，记录设备在第二线路上记录预定类型的呼叫活动。 在检测到预定呼叫特征时，交换机也可以切换监视用户线路的呼叫活动以监视第二线路的呼叫活动。 交换机还可以切换记录设备从记录用户线路的呼叫活动到记录第二行的呼叫活动。 这可以通过将记录装置从用户线路的连接切换到第二线路来完成。

公开(公告)号：US5943393A

公开(公告)日：1999-08-24

申请号：US724110

申请日：1996-09-30

Applicant: Robert Mark Howell

Inventor： Robert Mark Howell

IPC: H04M3/22 ,  H04M3/54 ,  H04M1/24 ,  H04M3/42

CPC classification number: H04M3/2281 ,  H04M3/54

Abstract: A telephone wiretapping system having a call-forward event and reporting processor for producing a call-forward event control signal when a call from a calling party to a predetermined telephone line is to be call-forwarded to a different telephone line. A switch is responsive to the control signal produced by the call forward event and reporting system for switching the recording device from the target telephone line to the call-forward event and reporting processor when the control signal indicates a call-forwarding event. With such an arrangement, the recording device will recorded calling event signals to, or from, the target telephone line even though the calling event signals are occurring at the call-forwarded telephone line. The call-forward event and reporting processor produces signalling information taking place between the telephone line of the calling party and the telephone line of the different, call-forwarded telephone line. The switch couples the signalling information taking place between the telephone line of the calling party and the telephone line of the different, call-forwarded telephone line produced by the call-forward event and reporting processor to the recording device when the call-forward event control signal is produced. A tone generator is coupled between the switch and the call-forward event and reporting processor for producing a predetermined tone for the recording device when the switch couples the recording device to the call-forward event and reporting processor. The predetermined tone is a "fourth" column DTMF tone.

Abstract translation: 具有呼叫前转事件的电话窃听系统和用于当来自主叫方到预定电话线路的呼叫被转接到不同电话线路时产生呼叫前转事件控制信号的报告处理器。 当控制信号指示呼叫转移事件时，交换机响应于由呼叫转移事件产生的控制信号和用于将记录设备从目标电话线切换到呼叫前转事件和报告处理器的报告系统。 通过这样的配置，即使呼叫事件信号发生在呼叫转移电话线路上，记录装置也将向目标电话线路或从目标电话线路记录呼叫事件信号。 呼叫转移事件和报告处理器产生在主叫方的电话线与不同的呼叫转接电话线的电话线之间发生的信令信息。 当呼叫转移事件控制时，交换机将呼叫转移事件产生的不同的，呼叫转接的电话线路的电话线和呼叫转移电话线的电话线之间发生的信号信息耦合到记录装置 产生信号。 当开关将记录装置耦合到呼叫前转事件和报告处理器时，音调发生器耦合在开关和呼叫前转事件和报告处理器之间，用于为记录装置产生预定音调。 预定音是“第四”列DTMF音。