JPS62232245A - Line exchange network equipment - Google Patents

Abstract

PURPOSE:To call other subscriber terminals registered as the same group of incoming subscriber terminals by providing a slide controller when an incoming side subscriber terminal is under communication or does not respond to for a prescribed time or over. CONSTITUTION:In making a call from a telephone set 2a accommodated in a line exchange 1a to a telephone set 2d accommodated in a line exchange 1b, when a slide controller is present on the position of a caller line exchange la and the slide controller 10 detects that the telephone set 2d is busy or does not respond for a prescribed time or over via a detector 11, a relay line connected to the line exchange 1b is once cut off via a relay trunk 7a, a relay line 8 and a relay line trunk 7b. Then a dial signal of a telephone set 2e registered on a registering device 9 as the same group as the telephone set 2d is sent to a common controller 4b via the relay line trunk 7a, the relay line 8 and the relay line trunk 9b.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to a circuit switching network device that performs oil control between subscriber terminals such as telephones, and in particular to a circuit switching network device that is housed in different circuit exchanges connected by trunk lines. This relates to sliding control between subscriber terminals.

[Conventional technology]

The subscriber terminal is a telephone, and one line exchange IIILI!
! I has the conventional slide function, and the other line intersection F18
The prior art will be explained by taking as an example a case where the switch does not have the conventional slide function. Fig. 2 is a block diagram showing two line exchanges connected via a trunk line, and in the figure, (la)? The subscriber circuit (3a), (3
b), (3c) ---- and common control device (4a), switch network (5a) and trunk line trunk (7a)
) and a registration device (9), (1b) is a subscriber circuit (3a), (3θ), (3f)---1, a common control device t (4b), and a switch network (5b)
and a trunk trunk (7b), (2a
) ~ (2f) are telephones that are subscriber terminals, (3a) ~
(3f) includes telephones (2a) to (2f), switch networks (5a), (5b), and common control device (4a)
, (4b), the subscriber circuits (4a) and (4b) are the respective interfaces with the telephones (2a) to (2
f) a common control device which discloses the communication state of the telephone, controls the respective switch networks (5a) and (5'b), and notifies the foaming telephone of the communication state of the called telephone;
), (5b) are switch networks that set up respective call routes between the telephones (2a) to (2f);
6a) is a telephone set (2a) and a trunk trunk (7), which will be described later.
a), (6d) is a call route that connects a telephone (2d) and a trunk trunk (7b), which will be described later, (8) is a trunk line that connects different circuit exchanges (la) and (lb), (
9) is connected to the common control device (4a) and connected to the line exchange (
A plurality of telephones (2a) and (2b) housed in 1a)
), (2c)-1-- is a registration device that registers a plurality of groups with at least one set of dial numbers.

Next, the operation will be explained below. However, the line exchange (1a) has a sliding function between telephones (2a), (2b), (2c)--m- accommodated in the own line exchange (1a), and the registration device (9) phone! l! (2
b) It is assumed that the dial numbers , (20) are registered as one group, and the line exchange (1b) does not have the above-mentioned sliding function.

When the telephone (2a) housed in the line exchange (la) configured in this way makes a call to the telephone (2b) housed in the same line exchange KL machine (la), first the common control device (4a) detects that the telephone (2a) is making a call to the telephone (2b) via the subscriber circuit (3a).

Next, the common control device (4a) sends information via the subscriber circuit (3b) as to whether the telephone (2b) is busy or not, and
If the I (21)) is on a call, the registration device (9)
) Telephones registered in the same group (2C)
It starts to detect whether the telephone is busy or not through the subscriber circuit (3C), and on the other hand, if the power supply machine (2b) is empty, the telephone (2a
) and the telephone (2b). Also, the telephone (
2b) is on a call and detects the call status of the telephone (2C) via the above-mentioned subscriber circuit (3C).
) is empty, the common control device (4a)
Control the switch network (5a) to set a call route between a) and the telephone (20), and
If the telephone is also busy, the common control device (4a) switches the telephone (
2b) Detect the call status. In this way, the telephone (pb).

The above control is repeated until either of the telephones (2c) and (2b) or telephones (2a) and (2b) are empty.
2C) In addition, in the conventional example above, the slide control is performed when the called party's telephone is busy, but the slide control can also be applied if the called party's telephone does not respond for a predetermined period of time even if it is idle. It is also possible to control it.

However, the telephone (2a) is housed in a line exchange 111L machine (1b) different from the line exchange (1a).
If a call is made to 2d), the result will be as follows. When the telephone (2a) makes a call to the telephone (2d), the common control device (4a) transmits the telephone (2a) to the telephone (2d) housed in the circuit exchange (1b) via the subscriber circuit (3a). ), and controls the switch network (5a) to set a call route (6a) between the subscriber circuit (3a) and the trunk trunk (7a), and A dial signal for the telephone @(ld) is transmitted to the common control device (6b) via the trunk ('ya)+trunk line (8) and the trunk line trunk (7b).

In response to this, the common control device (4b)
d) detects whether the telephone (2d) is busy or not, and if the telephone (2d) is busy, connects the busy mountain number to trunk (7b) + trunk (8), trunk It is sent to the telephone (2a) via the trunk (7a) + call path (6a), and if the telephone (2d) is empty, the telephone (2a
), (2d).
In this way, when the telephone (2a) wants to make a call to the telephone (2d), the switch network (5b) is controlled to set the telephone (2d) and the telephone (
Even if the line exchanger (2θ) is installed adjacent to the
b) does not have the conventional slide function and the phone (2d
) is busy, or if the ringing continues for a long time even if the telephone (2d) is idle, the telephone (2a)
This means that she will have to get angry with the telephone (2e) again.

[Problem that the invention seeks to solve]

Since the conventional line switching network equipment is configured as described above, the subscriber terminal on the estrus side and the subscriber terminal on the dying side are housed in different line exchanges, and the line switching machine on the receiving side has a sliding function. If the subscriber terminal on the receiving side is not in service or does not respond for a predetermined period of time, the subscriber on the receiving side will not be able to subscribe to the subscriber terminal adjacent to the subscriber terminal on the receiving side. Since the subscriber's terminal number has to be reissued, there are problems such as inefficient use of the subscriber's terminal.

This invention was made to solve the above-mentioned problems, and a! Even when performing I, if the subscriber terminal on the terminating side is cleaning or does not respond for a predetermined period of time, another subscriber terminal registered in the same group as the subscriber terminal on the terminating side will be attempted to clean the oil. Slide function to call! [Means for solving the problem] A circuit switching network device according to the present invention is capable of being housed in a circuit switching device of its own or a circuit switching device different from the circuit switching device of its own. At least one subscriber terminal number among the subscriber terminals
If a busy number or a ringback tone (calling signal) is received for more than a predetermined period of time from the terminating line exchange that accommodates the registered device registered as a group and the terminating subscriber terminal that is attempting to communicate with IT1, A detection device detects whether the subscriber terminal has been returned, and the detection code from this detection device is used to temporarily disconnect the relay line and connect other subscribers in the same group as the M1 side subscriber terminal registered in the registration device. A slide control device is added to send the subscriber terminal number of the subscriber terminal to the common control device of the line exchange.

[Function] In the foaming line exchange according to the present invention, the detection device detects that the subscriber terminal on the calling side is 1@busy or does not respond for a predetermined period of time, and the slide control device detects 1ilI! Temporarily disconnect the relay line with the terminating line exchange where the attempt was made, and share the subscriber terminal number of the other subscriber terminals in the same group as the subscriber terminal that was previously registered in the registration device. By sending the information to the control device, the receiving subscriber terminal can be automatically switched.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1, taking line exchange between telephone sets as an example.

In FIG. 1, the same reference numerals as those in the conventional device are the same or equivalent parts as in the conventional device, and (9) indicates a plurality of subscriber terminals housed in the own line exchange or a line exchange different from the own line exchange. subscriber terminal number of at least 1
A registration device that registers multiple groups as a group, αD, receives a busy signal or a ringback tone (calling number 1 for a predetermined time or more) from the receiving line switch via the trunk trunk (7a). ), the detection device αO temporarily disconnects the electrical relay line in the relay line (8) with the receiving side line exchange @ machine by the detection No. 1 from the detection device αυ, and then the registration device (9) This is a slide control device that slides the phone to the phone in the same group as the called phone that is registered in 0. Next, the phone ta (ta (
Taking as an example the case in which the telephone 2a) is sent to the telephone set (2d) housed in the circuit switching device (1b), the case where the slide control device is located on the side of the foaming circuit switching device (1a) will be described. However, the line exchange (1b) does not have a sliding function, and the registration device R (9) Kake telephone ff1 (2
d) and the telephone (2e) are registered as the same group. When the telephone (2a) goes to the telephone (2d), the common control device (4a) sends the telephone to the telephone via the subscriber circuit (3a). (1a) detects that it is making a call to a telephone (1d) housed in a circuit exchange (1b) different from its own circuit exchange (1a), and connects the subscriber circuit (3a) and trunk trunk (7a). The switch network (5a) is controlled so as to set up a call route (6a) between the trunk line trunk (7a), and the middle 1! line (8), trunk trunk (
The dial signal (subscriber terminal number) of the telephone (2d) is transmitted to the common control unit @(41)) via the terminal 7b). In response to this, the common control device (4b) notifies the telephone (2d) from the line exchange (1a) that it is in heat, and determines whether the telephone (2d) is busy or not on the subscriber circuit (3d).
), and if the telephone (2d) is busy, it sends a busy signal to the trunk (71)), the trunk (8),
It returns via the trunk trunk (7a) and connects the telephone (2d).
) is empty, the telephone (2d) and the trunk trunk (
7b), a trunk line (7b), and a trunk line (8).

A ringback tone is returned via the trunk trunk (7a). As a result, when the detection device α°C receives a busy signal from the line exchange (lb), the detection device α°C detects the call path (6
a), sends a paging signal (a signal that has the same meaning as a ringback tone, and may also be the same signal as a ringback tone) to the telephone (2a) via the subscriber circuit (3a), and The slide control device α0 is notified that the signal has been returned, and on the other hand, when a ringback tone is returned from the line exchange (1b), the call path (6a)
, sends the calling signal to the telephone (2a) via the subscriber circuit (3a), and determines whether the ring bat tone has been returned for a predetermined period of time. Let them know.

Subsequently, when the slide control device QO detects through the detection device αυ that the telephone (2d) is busy or does not respond for a predetermined period of time, it detects that the telephone (2d) is busy or does not respond for a predetermined period of time, and then switches the trunk line to the trunk (7a).

The trunk line connected to the line exchange (1b) via the trunk line (8) and trunk line trunk (7b) is temporarily disconnected,
The dial signal of the telephone (2e), which is registered in the registration device (9) as the same group as the telephone (2d), is transmitted to the trunk (7a) of the trunk line! line (8), trunk trunk (
cab) to the common control device (4b).

In response to this, the common control device (4b) again operates as described above to connect the telephone Flk (
2, 9) is busy or not, and if it is busy, it will send a busy signal, and if it is empty, it will set a call route between the phone (2e) and the trunk trunk (7b) and send a ringback tone. Line intersection 111! Reply to L machine (1a) 0 From then on, the process continues in the same manner as described above until either the estrous side telephone (2a) hangs up or one of the dying side telephones (2d) or (2e) picks up the receiver. .

In the above embodiment, the detection device (11) includes a timer function for counting the predetermined response time of the ring bank tone. The slide control device 1QO may have only the function of transmitting No. 1, and the slide control device 1QO may be provided with a timer function for counting the predetermined reply time.

In addition, the estrous side line exchange 1IIL machine (la) is the own line exchange (la) K accommodated telephones (2a), (2b) l (
2c) - may or may not have a conventional sliding function, and the exchange system may be analog or digital.

Furthermore, in the above embodiment, the registration device (9) includes a telephone (2d) housed in the same line exchange (1b).

(2eL(2f)--m- is shown as being registered as at least one group, but the telephones registered as one group may be accommodated in different line exchanges.

Further, in the above embodiment, the case where the subscriber terminal is a telephone has been described, but it may also be a data terminal, and the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, the line exchanger has the own line exchange 11! ! A registration device that registers the subscriber terminal numbers of a plurality of subscriber terminals accommodated in different line exchanges as at least one group, and an incoming call that attempts to communicate with a terminating line exchange housed in the terminating line exchange. A detection device that detects that the subscriber terminal on the side is communicating or does not reply for a predetermined period of time, and a detected signal from this detection device temporarily disconnects the relay line, and the receiving side registered in the registration device A slide control device that sends the subscriber terminal numbers of other subscriber terminals in the same group as the subscriber terminal to the common control device is added, so that the receiving side line exchange that is connected via a trunk line and does not have a slide function This has the effect of providing a large number of slide functions to subscriber terminals housed in the .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a circuit switching network device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional circuit switching network device. switchboard, (2
a) to (2f) are telephones, (3a) to (3f) are subscriber circuits, (4a), (4b) Vi common control device, (5
a), (5b) are switch networks, (6a), (
6cL) is a call route, (7a) and (7b) are trunk trunks, (8) is a trunk line, (9) is a registration device, QOfi slide control device, α1) Vi detection device, and the same reference numerals are used in the figure. indicate the same or equivalent parts.

Claims (1)

[Claims] (1) In a circuit switching network device in which a plurality of circuit exchanges are connected via trunk lines, a plurality of subscriber terminal numbers among the subscriber terminals accommodated in the circuit exchange are registered as at least one group. A registration device that has
A detection device detects that the subscriber terminal on the called side is communicating or does not respond for a predetermined period of time, and when this detection device detects that the subscriber terminal is communicating or does not respond for a predetermined period of time, it temporarily disconnects the relay line and sends a message to the registration device. A circuit switching network device comprising: a slide control device for transmitting subscriber terminal numbers of other subscriber terminals in a group to which a registered subscriber terminal on the receiving side attempting to communicate belongs to a common control device of a circuit exchange.