公开(公告)号：EP0067268A3

公开(公告)日：1983-08-10

申请号：EP82100128

申请日：1982-01-11

申请人： GTI Corporation

发明人： Stein, Jeffrey D. ,  McCool, John M.

IPC分类号： H04M03/58 ,  H04Q03/00 ,  H04M01/00

CPC分类号： H04M3/4283 ,  H04M1/53

摘要： A hook flash actuated telephone control device that is connected into a subscriber's telephone line (2 and 2') to permit a user to place an existing call on hold by selectively activating the hook switch (3 and 3') of his telephone (1) according to a particular sequence. The control device includes a comparator (6) which senses the line voltage and produces an output signal, the level of which is dependent upon whether or not the telephone handset is in an on-hook or off-hook condition. A timer (16) and control logic (18) are interconnected so as to be triggered by the output signal of the comparator. If the telephone handset is in an off-hook condition and the hook switch flash signal sequence is completed within a first particular predetermined time as measured by the timer, a corresponding signal is generated by the control logic to energize a hold circuit (22), whereby to place the telephone circuits in a hold condition. Audio signal generating means (24 and 26) are also energized in order to provide the user with a tone to indicate that the telephone circuits are rendered in a hold condition. Accordingly, the user may return the handset to the telephone cradle without disconnecting the existing caller. A second timer (20) is interconnected with the control logic (18) to automatically cause the user's telephone circuits to be reset in order to receive new incoming calls, should the user inadvertently place his telephone circuits in a hold condition for longer than a second predetermined time as measured by the second timer. To resume an existing telephone call, the user merely raises the handset from the cradle of his telephone or any extension thereof, whereby the line voltage changes and the hold circuit is subsequently and automatically deenergized.

摘要翻译： 钩子闪光致动电话控制装置，其连接到用户的电话线路中，以允许用户通过根据特定顺序选择性地启动他的电话的挂钩开关来将现有呼叫置于保持状态。 控制装置包括一个比较器，它检测线路电压并产生一个输出信号，其电平取决于电话听筒是否处于挂机或摘机状态。 第一定时和逻辑装置相互连接，以便由比较器的输出信号触发。 如果电话听筒处于摘机状态，并且挂钩开关闪烁信号序列在第一特定预定时间内完成，则产生相应的信号以使保持电路通电，从而将电话线路置于保持状态。 音频信号发生装置也被激励，以向用户提供一个指示电话电路呈现在保持状态的音调。 因此，用户可以将手机返回到电话机座，而不断开现有的呼叫者。 如果用户无意中将他的电话电路置于保持状态超过第二预定时间，则还提供第二定时和逻辑手段来自动重置用户的电话电路以接收新的来电。 为了恢复现有的电话呼叫，用户仅将手机从其电话的支架或其任何延伸部分提起，由此线路电压改变，并且保持电路随后被断电。

公开(公告)号：EP0276622A3

公开(公告)日：1988-11-17

申请号：EP87600012

申请日：1987-11-09

申请人： Papadakis, Ioannis

发明人： Papadakis, Ioannis

IPC分类号： H04M03/58 ,  H04M03/42 ,  H04Q03/00

CPC分类号： H04Q3/00 ,  H04M3/428 ,  H04M3/58

摘要： The broker's call arrangement offers the possibility to a conventional subscriber engaged in a call, to be connected to a second calling subscriber by activating his hook-switch. The arrangement comprises an electronic circuit placed in the final selector circuit at the exchange.

摘要翻译： 经纪人的呼叫安排为从事呼叫的常规用户提供了通过激活他的挂机交换机连接到第二主叫用户的可能性。 该装置包括在交换时放置在最终选择器电路中的电子电路。

公开(公告)号：EP0192107A3

公开(公告)日：1988-07-20

申请号：EP86101328

申请日：1986-02-01

申请人： TELENORMA Telefonbau und Normalzeit GmbH

发明人： Hutt, Hans

IPC分类号： H04M03/62 ,  H04M03/58 ,  H04M09/00

CPC分类号： H04M3/62 ,  H04M3/4283 ,  H04M3/58 ,  H04M9/002