JP2002305590A - Order wire device, connection method and connection program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an order wire device and its connection method that can simultaneously call a plurality of opposite parties and allow a caller to confirm whether or not a call is normally made. SOLUTION: A signal detection section 11 detects a broadcast call signal. An RBT(Ring Back Tone) stop request detection section 13 detects a ring back tone stop request signal. An operation detection section 12 detects a reply from an operator. A ringing generating section 16 starts ringing when detecting a call signal and stops the ringing when detecting a reply from an operator. A ring back tone generating section 14 transmits a ring back tone when detecting the call signal, stops transmission of the ring back tone when detecting a ring back tone stop request signal and stops the transmission of the ring back tone when detecting a reply from the operator. An RBT stop request generating section 15 transmits the ring back tone stop request signal when detecting a reply from the operator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an order wire device mounted on a transmission device or the like, and more particularly, to an order wire device capable of calling a plurality of transmission devices and a connection method thereof.

[0002]

2. Description of the Related Art Many transmission devices such as SDH and WDM are equipped with an order wire device to enable communication between operators at each station. The operator uses, for example, an order wire device to communicate with an operator of another station in maintenance and operation work. The order wire devices mounted on the plurality of transmission devices are connected to each other so as to enable voice communication, and form an order wire network.

[0003] Voice signals for communication between operators and control signals for controlling calling and answering are transmitted using fields for maintenance and operation. The field for maintenance / operation purpose is, for example, E1 and E2 bytes defined in the overhead of the frame.

[0004] The order wire device has a simple telephone function and implements calling and talking between operators. The order wire device has a man-machine interface such as a numeric keypad, a microphone and a speaker, or a headset or a handset having them.
Further, the order wire device may have a display such as a liquid crystal or a 7-segment LED.

FIG. 6 is an explanatory diagram for explaining the operation of a conventional order wire device.

FIG. 6 shows a connection between the transmission devices 601 and 602. The transmission device 601 has an order wire device 611 and is used by the operator 621. The transmission device 602 has an order wire device 612 and is used by the operator 622.

The control operation will be described by taking as an example a case where a call is made from the operator 621 to the operator 622.

First, the operator 621 operates the order wire device 611 to transmit a signal to the order wire device 612. The order wire device 621 receiving the call,
Ringing is sounded and the operator 6
22 and the order wire device 61
1 and a ring back tone (RBT) is returned. The ringback tone is output from the speaker of the order wire device 611 to inform the operator 621 that the other party is being called. The operator 621 can confirm that ringing is sounding normally in the order wire device 612 by the ringback tone.

FIG. 8 is an explanatory diagram for explaining a conventional general procedure for establishing a call between order wire devices.

Referring to FIG. 8, first, an operator 62
1 operates the order wire device 611 to transmit to the order wire device 612. The order wire device 612 that has received the incoming call rings the ringing and generates a ringback tone toward the order wire device 611. The ringback tone is output from the speaker of the order wire device 611.

Next, when the operator 622 operates and responds to the order wire device 612, the order wire device 61
2 stops the ringing sound and stops transmitting the ring back tone. When the ringing and the ringback tone stop, a voice communication between the operator 621 and the operator 622 becomes possible.

[0012]

In the maintenance and operation of a transmission device or a transmission system, it is sometimes convenient for operators at a plurality of stations to have a conversation at the same time. For that purpose, the order wire apparatus needs to simultaneously call a plurality of parties and allow a plurality of operators to talk at the same time.

A conventional order wire network composed of order wire devices has a function of simultaneously calling a plurality of order wire devices from one order wire device (simultaneous call function). In the conventional order wire network, the order wire device does not generate a ringback tone to be heard by the paging operator because of the inconvenience described later.

FIG. 7 is an explanatory diagram for explaining a conventional method of controlling simultaneous paging between order wire devices. FIG.
2 shows a station on the calling side that is making a general call and one station on the called side that is making a general call.

As shown in FIG. 7, the operator 621
Cannot hear the ringback tone and cannot know whether or not ringing is sounding normally in the order wire device 612. That is, even if there is an abnormality in the transmission path between the transmission device 601 and the transmission device 602 and the order wire device 612 is not sounding, the operator 6
21 cannot know it.

Next, an inconvenience when a ringback tone is generated in an order wire network using a conventional order wire apparatus will be described.

FIG. 9 is an explanatory diagram for explaining an operation when a conventional order wire apparatus configures an order wire network and performs a simultaneous call. Here, when attention is paid to two transmission devices connected adjacent to each other, one transmission device side (right side in FIG. 9) is east (Ea
st), and the other transmission device side (the left side in FIG. 9) is referred to as a West.

In the order wire network of FIG. 9, a plurality of order wire devices 9 are placed on the same line (on the same transmission line).
11, 912, 913, 914, and 915 are connected, and all ones of the order wire devices can be simultaneously called (ALL Calling) to all the other order wire devices. Here, the order wire device 911 is replaced by another order wire device 912, 913, 914, 915.
A case where a simultaneous call is made to the user will be exemplified.

The operation of the order wire network will be described.

First, as shown in FIG. 9A, the operator 912 operates the order wire device 911 to make a general call to the other order wire devices 912, 913, 914, and 915. Order wire device 912, 91
3, 914 and 915 ring the ringing and return the ring back tone to the order wire device 911. These ringback tones are synthesized and output from the speaker of the order wire device 911.

Next, as shown in FIG. 9 (b), when the operator 923 responds, the order wire device 913 stops ringing and stops sending ring back tone.

As a result, as shown in FIG. 9C, a call can be made between the order wire device 911 and the order wire device 913. However, in this state, the order wire devices 912, 914, and 915 do not stop transmitting the ring-back tone, so that the speech and the ring-back tone are combined to interfere with the speech.

FIG. 10 is a sequence diagram showing the operation of the order wire network shown in FIG.
Referring to FIG. 10, it can be seen that the call voice 100 between the order wire device 911 and the order wire device 913 is synthesized with the long back tone, which causes a problem in the call.

An object of the present invention is to provide an order wire apparatus which can simultaneously call a plurality of parties and which can confirm on a calling side whether or not a call is normally made on a called side, and a connection method therefor. It is to be.

[0025]

In order to achieve the above object, an order wire apparatus according to the present invention is an order wire apparatus capable of simultaneously calling one apparatus to a plurality of apparatuses. Signal detection means for detecting a call signal, stop request detection means for detecting a ring back tone stop request signal from the transmission line, operation detection means for detecting an operator response, and detection of the call signal by the signal detection means When it is done, it starts ringing
Ringing generating means for stopping ringing of the ringing when the response of the operator is detected by the operation detecting means, and transmitting a ringback tone to a transmission line when the ringing signal is detected by the signal detecting means. When the ringback tone stop request signal is detected by the stop request detecting means, the transmission of the ringback tone is stopped,
Ring back tone generating means for stopping the transmission of the ring back tone when the response of the operator is detected by the operation detecting means; and ring back tone when the response of the operator is detected by the operation detecting section. And a stop request generating means for sending a stop request signal to the transmission path.

According to the present invention, in a simultaneous call to a plurality of order wire devices, it is possible for the calling side to confirm whether or not the call is normally made in the order wire device on the receiving side by the ringback tone. If there is a response from one order wire device, the ringback tone from another order wire device is stopped.

The ringing generating means further includes:
The ringing sound may be stopped even when the stop request detecting means detects the ring back tone stop request signal.

The order wire connection method of the present invention is an order wire connection method for simultaneously calling one order wire device to a plurality of order wire devices.
Ringing the ringing when transmitting a paging call from the transmission path and transmitting a ringback tone to the transmission path; stopping the ringing when the response of the operator is detected and transmitting the ringback tone; And transmitting a ring-back tone stop request to the transmission line, and stopping the transmission of the ring-back tone when the ring-back tone stop request is detected from the transmission line.

When the ringback tone stop request is detected from the transmission line, the transmission of the ringback tone may be stopped and the ringing sound may be stopped.

The order wire connection program according to the present invention comprises:
An order wire connection program for simultaneously calling from one order wire device to a plurality of order wire devices, wherein when a simultaneous call is detected from a transmission line, ringing is sounded and a ringback tone is transmitted to the transmission line. Detecting the response of the operator, stopping the ringing sound, stopping the transmission of the ring back tone, and sending a ring back tone stop request to the transmission line; and When a back tone stop request is detected, a process for stopping transmission of the ring back tone is provided.

When the ringback tone stop request is detected from the transmission line, the transmission of the ringback tone may be stopped and the ringing sound may be stopped.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an order wire device according to one embodiment of the present invention.

The order wire device 10 of the present embodiment, when detecting a response from the operator, requests the other order wire device to stop the ring back tone (RBT), so that the signal detection unit 11, the operation detection unit 12, and the RBT It has a stop request detection unit 13, an RBT generation unit 14, an RBT stop request generation unit 15, and a ringing generation unit 16.

The signal detecting section 11 detects a calling signal from the receiving transmission line 17, and detects the ringing generating section 1 based on the signal S1.
6 and the RBT generator 14.

The operation detecting section 12 detects a response due to the operation of the operator, and outputs a ringing generating section 1 based on a signal S2.
6. Notify the RBT generator 14 and the RBT stop request generator 15.

The RBT stop request detecting section 13 detects a ring back tone stop request signal from the reception transmission line 17,
The RBT generator 14 is notified by the signal S3.

RBT generating section 14 sends a ringback tone upon receiving a notification that a paging signal has been detected from signal S1 from signal detecting section 11. Further, upon receiving a notification from the RBT stop request detecting section 13 that the ring back tone stop request signal has been detected by the signal S3, the RBT generating section 14 stops transmitting the ring back tone.
Further, the RBT generation unit 14 receives a signal S from the operation detection unit 12.
Upon receiving notification that the operator's response has been detected in Step 2,
Stop sending the ringback tone.

The RBT stop request generator 15 sends a ring back tone stop request signal to the transmission line 18 upon receipt of a signal S2 from the operation detector 12 indicating that an operator response has been detected.

The ringing generating section 16 includes the signal detecting section 11
When ringing is received when a notification that a call signal has been detected is received by signal S1 from. Further, upon receiving a notification from the operation detection unit 12 that the response of the operator has been detected by the signal S2, the ringing generation unit 16 stops ringing.

FIG. 2 shows an order wire apparatus 1 according to this embodiment.
0 is an explanatory diagram for explaining an operation when an operator response is detected.

The order wire device 10 has a reception transmission line 17
When the ringing signal S4 is detected from the ringing tone, ringing is sounded and a ringback tone is transmitted to the transmission line 18.

In this state, when detecting the response of the operator, the order wire apparatus 10 stops ringing and transmission of the ring back tone, and transmits a ring back tone stop request signal S 5 to the transmission line 18.

FIG. 3 shows an order wire apparatus 1 according to this embodiment.
0 is an explanatory diagram illustrating an operation when a ringback tone stop request signal is detected.

When ringing is sounded and a ringback tone is transmitted to the transmission transmission line 18, the reception transmission line 1
When the ringback tone stop request signal is detected from 7, the ringing sound is stopped and the transmission of the ringback tone to the transmission line 18 is stopped.

FIG. 4 is a configuration diagram of a transmission system including a transmission device equipped with the order wire device of the present embodiment.

The transmission system according to the present embodiment includes a transmission device 4
01, 402, 403, 404, and 405. Each of the transmission devices 401, 402, 403, 404, and 405 is an order wire device 101, 102, 10 having the same function.
3, 104, and 105, respectively. Here, when attention is paid to two transmission devices connected adjacent to each other, one transmission device side (right side in FIG. 4) is East and the other transmission device side (left side in FIG. 4) is West. )
Shall be referred to as

Order wire devices 101, 102, 10
Reference numerals 3, 104, and 105 are connected on the same line (on the same transmission path), and simultaneous call from any order wire device to all other order wire devices is possible. Order wire devices 101, 102, 103, 104, 105
Has the same configuration and the same function as the order wire device 10 shown in FIG.

FIG. 5 shows that in the transmission system of this embodiment, the order wire device 101 is replaced by another order wire device 1.
It is a sequence diagram which shows the operation | movement at the time of performing the simultaneous call to 02,103,104,105.

First, the order wire apparatus 101 sends a call signal to the other order wire apparatuses 102, 103, 104, and 105 to perform a simultaneous call (All Calling).
I do. The call signal is a control signal that is continuously transmitted until the call is completed due to a response from the other party.

The other order wire devices 102, 103, 104, and 105 that have detected the call signal sound the ringing and return the ring back tone. These ringback tones are in full swing and the order wire device 10
1 speaker. Note that the ringback tone is also a control signal continuously transmitted until the call is completed by a response or the like.

Next, in response to the operator's response, the order wire device 103 stops ringing, stops sending the ring back tone, and sends a ring back tone stop request signal.

The order wire devices 102, 104, and 105 that have detected the ring back tone stop request signal stop ringing and stop transmitting the ring back tone. Further, in response to the response of the order wire device 103, the order wire device 101
The transmission of the calling signal to C.03 is stopped. The transmission of the call signal to the order wire devices 102, 104, and 105 is continued.

As a result, a call can be made between the order wire device 101 and the order wire device 103.
Further, the ringback tone transmitted from the other order wire apparatuses 102, 104, and 105 does not hinder the call.

Further, other order wire devices 102, 10
Since the call signal to 4, 105 is continuously transmitted, other operators can participate in the call from that time by responding to the call signal.

According to the order wire device of this embodiment,
In a simultaneous call to a plurality of order wire devices, it is possible to confirm on a calling side whether or not a call is normally made in the order wire device on the receiving side by a ring back tone, and if there is a response from one order wire device. For example, a call can be made without being disturbed by a ringback tone from another order wire device.

The order wire device 10 of the present embodiment
Means that even if any of the order-wire devices on the called side responds, the other order-wire devices do not stop ringing, but even if the other order-wire devices stop ringing at that time. Good. In this case, when detecting the calling signal from the reception transmission line 17, the signal detection unit 11 notifies the ringing generation unit 16 as well as the RBT generation unit 14. The ringing generator 16
Upon receiving a notification from the RBT stop request detecting unit 13 that the ring back tone stop request signal has been detected by the signal S3, the ringing stops.

The order wire device 10 of the present embodiment
May execute a program having a process for realizing the function of each unit shown in FIG. 1 by a processor.

[0059]

According to the present invention, in a simultaneous call to a plurality of order wire devices, it is possible to confirm on the originating side by a ringback tone whether or not a call is normally made in the order wire device on the receiving side. Also, if there is a response from one order wire device, a call can be made without being disturbed by a ringback tone from another order wire device.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an order wire device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram for explaining an operation when the order wire device of the present embodiment detects a response from an operator.

FIG. 3 is an explanatory diagram for explaining an operation when the order wire device of the present embodiment detects a ring back tone stop request signal.

FIG. 4 is a configuration diagram of a transmission system including a transmission device equipped with the order wire device of the present embodiment.

FIG. 5 is a sequence diagram showing an operation when the order wire device makes a simultaneous call to another order wire device in the transmission system of the embodiment.

FIG. 6 is an explanatory diagram for explaining an operation of a conventional order wire device.

FIG. 7 is an explanatory diagram for explaining a conventional method of controlling a simultaneous call between order wire devices.

FIG. 8 is an explanatory diagram for explaining a conventional general procedure for establishing a call between order wire devices.

FIG. 9 is an explanatory diagram for describing an operation when a general paging is performed by forming an order wire network by a conventional order wire apparatus.

FIG. 10 is a sequence diagram showing an operation of the order wire network shown in FIG. 9;

[Explanation of symbols]

Reference Signs List 10 order wire device 11 signal detection unit 12 operation detection unit 13 RBT stop request detection unit 14 RBT generation unit 15 RBT stop request generation unit 16 ringing generation unit 17 reception transmission line 18 transmission transmission line 101, 102, 103, 104, 105 order wire device 401, 402, 403, 404, 405 Transmission device

Claims (6)

[Claims] 1. An order wire device capable of simultaneously calling a plurality of devices from one device, comprising: signal detection means for detecting a call signal of a simultaneous call from a transmission line; and a ringback tone stop request from the transmission line. A stop request detecting means for detecting a signal; an operation detecting means for detecting an operator's response; a ringing sound is started when the signal detecting means detects the call signal; A ringing generating means for stopping ringing of the ringing when a response is detected; and a ringback tone is transmitted to a transmission line when the ringing signal is detected by the signal detecting means. When a ring back tone stop request signal is detected, the transmission of the ring back tone is stopped, and the operation detection means detects the operator's request. When a response is detected, ringback tone generating means for stopping transmission of the ringback tone, and when the response of the operator is detected by the operation detection unit, the ringback tone stop request signal is transmitted to the transmission path. An order wire device having a stop request generating means for sending. 2. The order wire apparatus according to claim 1, wherein said ringing generating means further stops ringing of said ringing when said stop request detecting means detects said ringback tone stop request signal. 3. An order wire connection method for simultaneously calling one order wire device to a plurality of order wire devices, wherein when a simultaneous call is detected from a transmission line, ringing is sounded and ringback is performed on said transmission line. Transmitting a tone, and upon detecting a response from the operator, stopping ringing of the ringing, stopping transmission of the ringback tone, and transmitting a ringback tone stop request to the transmission line; An order wire connection method comprising a step of stopping transmission of the ringback tone when detecting the ringback tone stop request from a transmission line. 4. The order wire connection method according to claim 3, wherein when the ringback tone stop request is detected from the transmission line, the transmission of the ringback tone is stopped and the ringing sound is stopped. 5. An order wire connection program for simultaneously calling one order wire device to a plurality of order wire devices, wherein when a simultaneous call is detected from a transmission line, ringing is sounded and ringback is performed on the transmission line. Processing for transmitting a tone, and upon detecting a response from the operator, stopping ringing of the ringing, stopping transmission of the ringback tone, and transmitting a ringback tone stop request to the transmission path; An order wire connection program having a process of stopping transmission of the ringback tone when the ringback tone stop request is detected from a transmission line. 6. The order wire connection program according to claim 5, wherein when the ring back tone stop request is detected from the transmission line, the transmission of the ring back tone is stopped and the ringing sound is stopped.