JPH0378028B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a telephone exchange, particularly a method of meeting between a line maintainer and a telephone office operator during construction work or failure regarding a subscriber line in an automatic exchange. be.

(Prior art) Fig. 3 is a block diagram explaining a conventional meeting system, in which 1 is a general subscriber, 2 is a track maintenance person, 3 is a subscriber line distribution terminal, 4 is a subscriber cable, and 5 is an automatic telephone. 6 indicates a reception trunk, and 7 indicates an operator's desk. To explain the conventional method of meeting between a track maintainer and a telephone office test operator for service order work, trouble repair, etc., first, the track maintainer 2 conducts a meeting at the subscriber distribution terminal 3 installed on a pole or in a manhole. ,
Using the meeting handset, an unused subscriber line is searched, the meeting handset is connected to the unused subscriber line, and the operator at the operator desk 7 of the telephone office is called. When a predetermined called party selection number is dialed, it is received by the exchange 5 through the subscriber cable 4, selects a reception trunk 6 using known telephone switching technology, connects to the operator's desk 7, and calls the operator. Next, a meeting is held between the track maintenance person and the operator at the operator's stand regarding service order work, failure repair, etc.

(Problems to be Solved by the Invention) However, the conventional methods described above have the following drawbacks.

(1) In the case of an unused subscriber line, it is necessary to investigate in advance whether it is connected to the exchange or not, and if it is not connected, connection work will be required.

(2) Since a large number of subscriber cables are laid in each direction from the telephone office to the subscriber area, if an unused subscriber line is to be used for a meeting, it is necessary to connect it to the exchange in advance. This has a negative impact on the number of general subscribers that the exchange can accommodate. Furthermore, a great deal of effort is required in terms of management for accommodating subscriber cables.

SUMMARY OF THE INVENTION An object of the present invention is to provide an excellent system that eliminates the above-mentioned problems and improves the efficiency of meetings between track maintenance personnel and operators of operator stands.

(Means for Solving the Problems) The feature of the present invention for achieving the above object is that the distribution terminal of the subscriber line connected to the automatic telephone exchange of the telephone office and the operator console of the telephone office are In the meeting method, a part of the subscriber cable is designated as a dedicated meeting line, the meeting lines from multiple subscriber cables are accommodated on the input side, and the output side is connected to the general subscriber side of the automatic telephone exchange. A line concentrator is installed in the telephone office, and the line concentrator detects a call originating from a distribution terminal and connects the subscriber cable accommodating the distribution terminal that made the call with the operator console via the automatic exchange. It is a meeting line concentration system that has an automatic dialing function for making calls.

(Function) In the above configuration, when a track maintenance person connects a meeting handset to a terminal of a meeting line, the line concentrator detects a call and enters the operating state. The line concentrator activates the automatic telephone exchange and automatically dials the selected number of the called party on the preset operator desk.
Therefore, the track maintenance person and the operator's stand are connected via the meeting line and can communicate over the phone.

(Embodiment) FIG. 1 is an overall block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of main means showing an embodiment of the present invention. The overall configuration will be explained with reference to FIG. 1 is a general subscriber, 2 is a track maintenance person, 3 is a subscriber line distribution terminal, 4 is a subscriber cable, 5 is an automatic telephone exchange, 6 is a reception trunk, 7 is a handling desk,
Reference numeral 8 indicates a meeting line necessary for the present invention, and reference numeral 9 indicates a line concentrator necessary for the present invention.

The subscriber cable 4, which is laid from the telephone office to each route within the subscriber area, accommodates multiple subscriber lines. It is once accommodated in the line distribution terminal 3 and connected to the home equipment (telephone) of each general subscriber. As a means for realizing the present invention, one line out of a plurality of subscriber circuits accommodated in the subscriber cable 4 is assigned to a meeting line 8 and accommodated in the subscriber line distribution terminal 3 described above. On the other hand, at the telephone office, a plurality of subscriber lines accommodated in the subscriber cable 4 are connected and accommodated to the subscriber circuit section of the exchange 5 via the main wiring board. After passing through the main wiring board, the aforementioned meeting line is not housed in the exchange 5, but is housed on the input side of the line concentrator 9 configured as a means for realizing the present invention, and the output side of the line concentrator is connected to the exchange 5. Connects and accommodates the subscriber circuit section.

Next, an overview of the operation will be explained. When the track maintenance person 2 has a meeting with the operator's stand 7, the track maintenance person 2 first connects the meeting handset to the terminal of the meeting circuit 8 housed in the subscriber line distribution terminal 3. The line concentrator 9 installed at the telephone office detects a call and enters into operation. When the line concentrator 9 operates, it activates the exchange 5 and automatically dials a preset called party selection number in order to call the operator at the operator desk 7. After selecting the reception trunk 6 using known telephone switching technology, it is connected to the operator's desk 7 to call the operator, and the line concentrator connects the incoming and outgoing sides to create a communication circuit. By connecting the track maintenance person 2 and the operator at the operator stand 7, it becomes possible to have a meeting call between the two. The above is an overview of the operation.

FIG. 2 shows the main line concentrator 9 constituting the present invention.
An example is shown below. In the block diagram, 11 is a call detection section, 12 is a line concentration connector section, 13 is a trunk section,
Reference numeral 14 indicates a sender section, and the call detection section 11 accommodates 0 to n meeting lines accommodated in the subscriber cables from each direction on the incoming side, and also connects lines corresponding to the number of accommodated lines. A call detection section and a communication path section for a maintenance person are provided, and a transmission/reception lead for trunk activation information and trunk activation confirmation information is provided between the system and the trunk section 13. Further, the output side of the call detection section is connected to the input side of the line concentrator connector 12. The line concentration connector section 12 is a communication path connector having a line concentration ratio configuration of M>N on the input side and output side, and is connected to N trunk sections 13 on the output side. The trunk section 13 is connected to a sender section 14 provided in common to the N trunk sections, and the output side is connected to an exchange.

Next, the operation of this device will be explained. First, when the call detection unit 11 detects a call using a call detection circuit installed according to the number of accommodated lines in response to a call request from a track maintenance person, the system is activated for the vacant trunk section 13 based on the trunk activation information read. Send information and capture the vacant trunk section. On the other hand, information is also sent to the connector section 12 as connector connection information to the input side selection circuit of the connector section. When the connector section receives the incoming selection information and the outgoing trunk selection information from the call detection section and the trunk section, it closes the corresponding cross point and connects the call detection section and the trunk section. Connect the telephone line. The trunk section is provided with a communication circuit having functions for monitoring the incoming call line, activating the outgoing exchange, and automatic dialing, and a activating and dialing relay circuit for the sender section 14. The operation of the trunk unit is to transmit the above-mentioned trunk selection information to the connector unit 12, and at the same time, when a call is detected by monitoring the incoming communication line, the trunk unit relays the call information to the subsequent exchange. Start. On the other hand, upon detection of a call, activation information is transmitted to the sender unit 14. The sender section 14 is provided with the functions of receiving activation information from the trunk section 13, making an automatic dial call, sending a dial to the trunk section 13, and sending out dial sending confirmation information. , the dial creation circuit creates preset selection number information for connecting the operator's console and automatically sends it to the trunk section. When the sending is completed and dial sending confirmation information is sent to the trunk section, the sender section recovers and prepares for the next activation request.
The trunk section receives automatic dialing information from the sender section and relays the information to the exchange. The operation on the exchange side is to connect the operator's desk via the reception trunk and call the operator using known exchange connection technology. If the operator answers, the call is made via the line maintenance operator, the subscriber cable, the call detection section 11 of the concentrator, the concentrator connector section 12, and the trunk section 13 to the exchange, reception trunk, and the operator at the operator's desk. A line is configured and calls can be made between the two parties.

(Effects of the Invention) As described above in detail, according to the present invention, a meeting line for line maintenance is provided exclusively for subscriber lines accommodated in subscriber cables, and By installing a line concentrator for cable meeting lines, it is possible to efficiently concentrate the lines, minimizing the impact on the number of subscribers the exchange can accommodate, and the automatic call function of the line concentrator allows line maintenance personnel to This can be expected to be effective in preventing erroneous transmissions.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a detailed block diagram of the main part of FIG. 1, and FIG. 3 is a block diagram of an apparatus showing a conventional meeting method. 1 is a general subscriber, 2 is a track maintenance person, 3 is a subscriber line distribution terminal, 4 is a subscriber cable, 5 is an automatic telephone exchange, 6 is a reception trunk, 7 is a handling desk, 8 is a meeting line, 9 is a line concentrator, 11 is a call detection unit,
12 is a line concentration connector part, 13 is a trunk part, 14
is the sender section.

Claims (1)

[Scope of Claims] 1. In a meeting system between a distribution terminal of a subscriber cable connected to an automatic telephone exchange at a telephone office and a telephone office operator's desk, a part of the subscriber cable is used for a dedicated meeting line. The central office shall be provided with a line concentrator that accommodates meeting lines from multiple subscriber cables on the input side and connects the output side to the general subscriber side of the automatic telephone exchange, and the line concentrator is connected from the distribution terminal to the general subscriber side of the automatic telephone exchange. A meeting line concentrator characterized in that it has an automatic calling function for connecting a subscriber cable accommodating a calling distribution terminal and a handling desk via the automatic exchange by detecting a calling. method.