公开(公告)号：US06192057B1

公开(公告)日：2001-02-20

申请号：US08954275

申请日：1997-10-21

申请人： Gunter Dueck ,  Karl Fleckenstein ,  Thomas Holey ,  Peter Korevaar ,  Martin Mähler ,  Andreas Rudolph ,  Tobias Scheuer ,  Heinrich Stuettgen ,  Sven Viergutz ,  Hans-Martin Wallmeier

发明人： Gunter Dueck ,  Karl Fleckenstein ,  Thomas Holey ,  Peter Korevaar ,  Martin Mähler ,  Andreas Rudolph ,  Tobias Scheuer ,  Heinrich Stuettgen ,  Sven Viergutz ,  Hans-Martin Wallmeier

IPC分类号： H04J312

CPC分类号： H04Q11/0457 ,  H04M1/65 ,  H04M1/663 ,  H04M1/82 ,  H04Q2213/13096 ,  H04Q2213/13176 ,  H04Q2213/13204 ,  H04Q2213/13206 ,  H04Q2213/13209

摘要： Disclosed is a mechanism to control telecommunication connections via digital switching networks like the ISDN. Frequently observed scenarios are a caller who is connected to an answering machine, although he intended to talk to a human individual, or where a node is shared by more than one individual and the caller wants to talk to a definite person likewise. Subscriber information is interchanged between a calling device and a called device before setting up the connection which is utilized to inform the caller about the device type at the called side or to inform the called side about the desired person. In the ISDN, a called device sends an ALERTING message to a switching center before accepting the connection. The switching center forwards a part of that message to the calling device which includes the so-called USER—USER Information Element (UUIE). In that USER—USER IE, an information like “UNDER THE CALLED NUMBER AN ANSWERING MACHINE IS BECOMING ACTIVE” can be coded. The USER—USER IE is transmitted by the ISDN network transparently to the calling device and thus can be presented to the calling participant via a display device. Alternatively, a different dial tone can be generated by the calling device to inform the participant about the answering machine.

摘要翻译： 公开了一种通过数字交换网络（如ISDN）来控制电信连接的机制。 经常观察到的场景是连接到应答机的呼叫者，尽管他打算与一个人交谈，或者一个节点被一个以上的个体共享，并且呼叫者也想要与一个明确的人交谈。 在建立连接之前，在主叫设备和被叫设备之间交换用户信息，该连接用于通知呼叫者被叫方的设备类型或通知被叫方关于所需人。 在ISDN中，被叫设备在接受连接之前向交换中心发送ALERTING消息。 交换中心将该消息的一部分转发给包括所谓的USER-USER信息元素（UUIE）的主叫设备。 在该USER-USER IE中，可以编码诸如“所请求的数字中的答复为正在运行的”的信息。 USER-USER IE由ISDN网络透传到主叫设备，从而可以通过显示设备向主叫方发送。 或者，主叫设备可以产生不同的拨号音，以通知参与者有关应答机。