JPS63185147A - Circuit constitution for monitoring state of holding in telephone exchanger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a circuit configuration for monitoring a line on hold in a telephone exchange forming a broker multiplex system as described in the preamble of claim 1.

Prior Art West German Patent Application DE-O8 3505781 relates to the use of a destination switch in a switching seat of a telephone switching system, in particular in a switching seat of a broker multiplex system, in which a line on hold is switched to a call state. It describes how to move to .

That is, in claim 8, when a line connected to a remote terminal is put on hold, a special audio frequency signal is output to the occupied line to generate a call signal to the terminal. It is stated that. This method is based on the premise that transmitting and receiving means are provided for each individual line. However, a large number of lines are typically used in broker systems, and such an approach suffers from the problem of high costs since the cost of each outside line is relatively high.

The circuit configuration for a telephone subsystem constituting a communications exchange system, particularly a broker system, is disclosed in West German Patent Publication DE
-O3 No. 3607685. In this configuration, a line on hold is provided with a shared audio frequency receiver for determining whether the line should be placed into a talk state. This receiver is periodically connected to each held line for a short period of time. When the voice frequency receiver responds to a voice signal or audible tone, a call signal is transmitted to the appropriate outside line. Alternatively, an electroacoustic transducer may be provided at the operator's seat or operator's seat for this purpose. In this case, this electroacoustic transducer is sequentially and periodically connected to the outside line which is on hold. In this case, a signal must also be sent by operating a cooperating operator switch. Furthermore, a separate terminal device is required for each operator device or exchange seat. This West German exhibition period lll tone DE-O3 No. 3
The configuration described in No. 607,685 has the problem that as a result of periodically switching connections, lines on either side can only be monitored for a short period of time. In actual use, it is advantageous to be able to continuously monitor lines that are on hold because voice announcements can be heard at any time.

In response to this, the line in the hold state is operated from the operator's seat or the handler's seat. That is, it becomes possible to directly instruct the operator or handler at the other end of the line to return the current line to a talking state.

Problems to be Solved by the Invention The object of the present invention is to provide a circuit configuration for monitoring lines in a hold state in a telephone exchange device forming a broker multiplex system, and to monitor a large number of lines in a hold state simultaneously regardless of the number of lines. The purpose is to provide a circuit configuration that can be monitored by Further, according to the present invention, it is also possible to specify which line on hold is to be monitored from the operator's seat or the handler's seat.

Means for Solving the Problems The above objects of the present invention are achieved by the features set forth in claim 1.

To summarize, the invention further provides an auxiliary connection grid plane to which an amplifier is connected on the input side and a loudspeaker on the output side. The input end of this auxiliary connection grid plane is connected to the column line or row line of the connection grid plane forming the line to the terminal equipment, while the external line and the inner line for the internal line are connected to this connection grid plane. ing. When a hold condition is established, a special operation activates the contacts in the auxiliary connection grid plane to connect the loudspeaker power to the corresponding line.

The present invention provides the advantage of being able to decide at any time whether or not to monitor the - line when it is put on hold.

For this purpose, it is sufficient to simply provide and operate a separate common switch.

Further embodiments of the invention are described in the dependent claims.

These embodiments accommodate the simultaneous connection of multiple lines to a single loudspeaker when each line being monitored is provided with a loudspeaker; used for. Further, a display device may be provided to display which line is connected to which loudspeaker.

EXAMPLES The present invention will be explained below with reference to the drawings. The figure shows a connection grid plane KF to which the outer lines EL1 to ELn and the inner line forming device IVS forming the inner line are connected. Both the inner line and outer line are exchange terminals AO1 to AO.
n in a known manner. A large number of exchange terminals AO are provided at the operator's desk of a telecommunications exchange system, in particular a broker multiplex system. It is also possible to connect another switching terminal, for example designated AO, to the subscriber telephone TA. In addition to the connection grid plane KF, a further auxiliary connection grid plane ZK is provided in the exchange system, and amplifiers 1 to 2n are connected to the inlet side of the grid plane ZK.

In the exemplary embodiment shown, the input terminals of the amplifiers, ie the input side of the further connection grid ZK, are connected to the column lines of the connection grid KF, which are connected to the outer lines EL1 to ELn or to the inner line forming device fvS. The input side of the auxiliary connection grid ZK is of course connected to the row line of the connection grid KF if the line being monitored is connected to the row line.

The connection grid ZK is in principle the connection grid KF of the switching system.
It is configured in the same way as . Loudspeakers L1 to Ln are then connected to the row lines of the connection grid ZK. The loudspeakers 1 to 1-n are installed at the operator's seat or at the operator's desk. Each operator's seat or seat is provided with a loudspeaker or multiple loudspeakers.

It is also advantageous if the program determines which of the lines to which the loudspeakers 1 to In in the connection grid ZK are connected to the individual operator seats. This makes it possible to avoid the inconvenience of simultaneously monitoring a line on hold at a plurality of operator seats. Furthermore, control technology measures are provided which prevent a later reconnection of a line which is already being monitored to the loudspeaker L of another operator's seat or operator's seat.

When a line that has been formed is put on hold midway and monitoring is started, a common monitor on switch (not shown) is operated before operating the hold switch. Alternatively, instead of using one common monitor-on switch, a plurality of monitor-on switches may be provided, each connected to one of the loudspeakers L'. - The connection to the connection grid ZK is turned on by operating the monitor on switch.

Here, in the connection grid KF, the external line ELI and the terminal device AO
Assume that the contact connecting 1 and 1 is turned on.

If the hold switch is operated subsequent to the operation of the monitor-on switch, the corresponding contact in the connecting grid KF opens and at the same time the corresponding advantage in the connecting grid ZK, e.g.
1 to loudspeaker L1 is turned on. Another loudspeaker can also be turned on to monitor the hold line depending on which monitor on switch is operated. It is also possible to connect the held lines that one wishes to monitor to a single loudspeaker, for example Ll.

In this case multiple amplifiers are connected to a single speaker. Further, on a display device (not shown) provided at the operator's seat or operator's desk, it is displayed which of the lines in the hold state is connected to which loudspeaker, for example, for monitoring.

The connection relationship formed in the connection grid ZK determines which operator seat or handler will perform the monitoring, and only from this location can the monitoring of the held line be stopped and the line temporarily switched to the talking state. can. Thereby, the line can be put on hold or cut off without operating the monitor switch in advance. To prevent a line that is already being monitored from being disconnected from a cooperating loudspeaker due to instructions from another operator's seat or operator, please note that the line is currently being monitored. A signal is generated line by line. At this time, it is determined whether the started monitoring is to be stopped by an instruction from the operator's seat or operator who instructed the start of monitoring, or by an instruction from another operator's seat.

The switching system is configured so that the line being monitored can be returned to the talking state unless the monitored state is turned off by instructions from the operator or handler. Of course, if it is desired to put the line on hold again or disconnect the line, the previous monitoring state is immediately restored. The line can only be cut off from the operator's seat or operator's seat where the monitor on switch was operated first.

As already explained, the circuit arrangement according to the invention can be provided with a common monitor-on switch or with multiple monitor-on switches that cooperate with individual loudspeakers by programming. Another possibility for simplifying the operating process is to provide a common monitor-on switch when a number of loudspeakers are installed at the operator's seat. In this case, by repeatedly operating this common monitor on switch, the loudspeakers can be turned on cyclically one after the other.
It is displayed which loudspeaker among 1 to In will be monitored by subsequent operation of the hold button.

[Brief explanation of the drawing]

The figure shows a connecting grid plane KF to which the inner line forming device 1Vs forming the outer lines EL1 to ELn and the inner line according to the present invention is connected, and an auxiliary connecting grid plane ZK connected thereto. EL1 to ELn...Outer line, IVS...Inner line forming device, KF...Connection grid surface, AOI to AOn...Terminal, TA...Subscriber telephone, ZK...Auxiliary connection grid surface , ■1~Vn...Amplifier. Patent applicant: Telefonbara Landnormmarzeit GmbH < 7. . 51' of the drawing: (No change in content) Procedural formalism (method) % formula % 2 Name of invention Circuit configuration for monitoring lines on hold in telephone exchange equipment a Relationship with the amended person's case Patent application Person Address: 128-146 Landstrasse, Frankfurt/Mainmaintour, 6000, Federal Republic of Germany Name: Telefonburgh Rand Normalzueit GmbH Representative: Lutz Geisler 4, Agent Address: 5-7-6 Kojimachi, Chiyoda-ku, Tokyo 102
, the applicant column and priority claim indication column, drawings, and power of attorney of the application to be amended. 7. Contents of amendment (1) In the application, the name of the applicant's representative will be amended as shown in the attached sheet. The title of the indication of priority claim and the application number of the earlier application shall be amended as shown in the attached documents. ■ Supplement the drawing's cleanliness (no change in content) as shown in the attached sheet. (4) One copy each of the power of attorney and its translation shall be supplemented as shown in the attached sheet.

Claims (5)

[Claims] (1) A hold state in a telephone exchange that forms a broker multiplex system that is equipped with a plurality of handsets at the operator's or handler's seat and is capable of simultaneously maintaining a plurality of lines and holding the formed lines on hold. A circuit configuration for monitoring a line, comprising an auxiliary connection grid plane (ZK) to which amplifiers (V1 to Vn) are connected to the input side and loudspeakers (L1 to Ln) are connected to the output side; External line (EL) or internal line forming device (IVS) on the input side of the connection grid plane (ZK)
Connect the column or row line of the connected grid plane (KF) that connects the line to the terminal equipment (AO) and actuate the contacts in the auxiliary connecting grid plane (ZK) when forming the hold state. A circuit configuration characterized in that a special service function can be performed by turning on a loudspeaker (L1 to Ln) of a corresponding line. (2) Loudspeaker corresponding to the first line (L1~Ln
), a monitor switch associated with each loudspeaker (L1 to Ln) is operated before operating the switch that produces the hold state. composition. (3) The circuit configuration according to claim 1, characterized in that the loudspeakers (L1 to Ln) can be shut off only from the operator or operator's seat who performed the operation to turn on the loudspeakers. . (4) Connect multiple lines simultaneously to loudspeakers (L1 to Ln)
2. Circuit arrangement according to claim 1, characterized in that it can be connected to one of the terminals (V1 to Vn) and an amplifier (V1 to Vn) is used for disconnecting the connection. (5) The circuit configuration according to claim 1, further comprising display means for displaying which line is connected to which loudspeaker (L1 to Ln).