JP3007515U - Telephone exchange call reconnect device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a telephone exchange call reconnection device capable of reconnecting a line that is being called due to circumstances on the called party side. [Construction] When the line is disconnected due to circumstances on the called party side during a call, the announcement device 5 gives guidance after a certain time asking whether or not reconnection is desired. When the caller responds with a PB signal, the PB signal receiving device 6 detects this and notifies the reconnection control device 7. The reconnection control device 7 reads the data necessary for reconnection from the corresponding call ticket in the call ticket storage device 8 and performs the reconnection operation based on this data. When the caller replies that the operation of reconnection is left to the exchange, the exchange will act on its behalf to perform the operation of reconnection. In the billing process, billing before and after reconnection is added up, and can be put together as one call.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a telephone exchange call reconnection device, and in particular, when the caller ends the call or disconnects unintentionally, the caller lifts the handset without waiting on the hook and waits for a while. The present invention relates to a telephone exchange call reconnection device capable of reconnecting to a telephone.

[0002]

[Prior art]

 Conventionally, for example, if the line condition is bad and the line is disconnected during the call, or if the call ends unintentionally due to the operation mistake of the called party, the telephone exchange will wait for a certain period of time. , The call line is opened, and then the billing process is performed. In this way, the telephone exchange automatically performs the call termination process in any of the above cases, so the caller who could not achieve the purpose of the call, once hangs up the handset to go on-hook, and restarts. It is necessary to redial the other party's telephone number from the beginning and call the called machine.

[0003]

[Problems to be solved by the device]

 As described above, if the line is disconnected in the middle of a call or if the call ends unintentionally, the caller temporarily hangs up the handset to go on-hook and restarts the other party's telephone number. Had to be redialed, which was extremely troublesome. In addition, when the caller's communication line is congested, there is a problem in that even if the call is redialed, it will be held by the exchange. Further, in the billing process, a call ticket is issued every time the line is connected to the other party, and the billing process is performed as a separate call, so that there is a problem that billing is not rational.

The object of the present invention is to eliminate the above-mentioned problems of the prior art, and to allow the telephone exchange to try the connection by redialing if the calling party wishes to reconnect. An object is to provide an exchange call reconnection device. Another object of the present invention is to provide a telephone switching call reconnecting device capable of processing call charging processing by summing the call time before disconnection and the call time after reconnection.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is characterized by having the following configurations.

(1) In a telephone exchange call reconnection device capable of reconnecting when a line in a call is disconnected due to circumstances of the called party, a call is made after a certain time has elapsed since the line was disconnected. An announcement device that sends guidance asking whether or not to reconnect to the caller side line, a PB signal receiving device that receives the PB signal input from the caller side phone, and a reconnection by the PB signal. It has a reconnection control device that performs reconnection processing based on the held reconnection data when instructed.

(2) In a telephone exchange call reconnection device capable of reconnecting when a line in a call is disconnected due to circumstances on the called party side, a call is made after a lapse of a certain time after the line is disconnected. An announcement device that sends guidance asking whether or not to reconnect to the caller side line, a PB signal receiving device that receives the PB signal input from the caller side phone, and a switchboard transfer by the PB signal Is provided with a reconnection control device for connecting the caller side line to the exchange, and a switchboard control device for displaying the retained reconnection data on the exchange.

(3) The communication ticket before and after the reconnection is recorded, and the billing data after the reconnection is added to the billing data before the reconnection, and the call ticket creating device for processing as one call is provided.

[0009]

[Action]

 According to the above configuration (1), when the called line is inadvertently disconnected due to the circumstances of the called party, the calling party inputs the PB signal according to the guidance from the announcement device without taking down the receiver. This allows you to reconnect with the other party. Therefore, the caller saves the time and effort of redialing the handset as in the conventional case, and convenience is improved.

According to the above configuration (2), the caller can leave the operation of reconnection to the switchboard, and can expect reconnection with confidence and reliability.

Further, according to the above configuration (3), the call record before and after the reconnection and the billing process can be put together as one call, so that the work of the billing process can be rationalized.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the system configuration of an embodiment of the present invention. In the figure, 1 is a switchboard, 2 is a central processing unit that controls the operation of the switchboard, 3 is a switchboard controller that connects a communication line and a switchboard, and supplies display information to the switchboard. 4, a switchboard having operation keys, a display device, etc., 5 an announcement device for sending a voice message to a telephone user, 6 a PB signal receiving device for receiving a PB signal input by the user, Reference numeral 7 is a reconnection control device which is the main part of the present invention, and 8 is a call ticket storage device for recording user information including telephone billing.

Next, an internal configuration of a portion of the exchange 1 related to the present invention will be described with reference to FIG. In the figure, 11 is a line link network (LLN), 12 is a call trunk (IOT), 23 is a trunk link network (TLN), 14 is a transmission register (ORT) for performing redial transmission, and 15 is a ring tone. Reference numeral 16 is a ringing tone trunk (RBT) for sending out, and 16 is a signal tone trunk (RGT) for sending out a ringing tone. Further, 9 is a calling side telephone, 10 is a receiving side telephone, 9a is a calling line, and 10a is a receiving line.

There are two types of modes for ending a call: the calling side first drops the handset (on hook) and the receiving side first hooks on hook. According to the present invention, when the calling side wants to continue the call while the call is still in progress, the called side goes on-hook or the call line is disconnected due to an obstacle, etc. The case of disconnection (hereinafter collectively referred to as “disconnection”) is assumed. It should be noted that the above-mentioned detection of disconnection on the called side is performed by checking whether or not the line state on the called side of the call trunk (IOT) 12 existing in the exchange 1 is different from the previous state (for example, OFF → ON). ) Is periodically monitored by the central processing unit 2.

Next, a timing chart of a normal call answer / disconnection detection process will be described with reference to FIG. When the line between the caller and the callee is connected at time t0, the line changes from the on state to the off state. After that, a call is made, and at time t1, when the caller side hangs up the handset and the caller line is returned to the ON state, it is judged that the call is normally terminated. However, at time t1, if the disconnection of the called party's line is detected even though the caller side still holds the receiver, the disconnection process is performed after the elapse of a certain time T. In this way, giving the initiative for disconnection to the calling party is called calling party release.

This disconnection detection processing on the receiving side does not immediately disconnect the connection in consideration of transfer to other extension telephones on the receiving side, miss of the handset, etc. For international calls, wait for 1 to 2 minutes before confirming that the call is disconnected. After the elapse of the certain period of time T, the callee line and the call trunk 12 are opened, but the caller has not hung up the receiver at this point, so the caller closes silently until the caller hangs up the receiver. Put in a state. This is called lockout.

Next, the operation of the embodiment of the present invention will be described with reference to the flowchart of FIG. First, in step S1, the state of the communication line is monitored, and in step S2, it is determined whether or not the state has changed from the previous state. If this judgment is affirmative, the process proceeds to step S3, and it is judged whether or not the called party's line is disconnected. If this determination is affirmative, the process proceeds to step S4, and a call ticket is created and stored. On the other hand, when the determination is negative, that is, when the caller line is disconnected, the process proceeds to step S10, a call ticket is created and stored, and then the process proceeds to step S11 to add to the caller charging file. Perform the process and end the process.

When the process of creating and storing the call ticket is performed in step S4, it is determined in step S5 whether or not a predetermined time T has elapsed. If this judgment is affirmative, the process proceeds to step S6, and the called party's line is put into an idle state. In step S7, the outgoing line is locked out, and in step S8, the announcement device 5 is connected to the outgoing line. Here, the announcement device 5 gives guidance, for example, "The call of the other party has been disconnected. Do you want to call again?" In step S9, the reconnection control device 7 determines whether or not the PB signal is received by the signal from the PB signal receiving device 6, and if this determination is affirmative, the process proceeds to step S12 in FIG.

In step S12, it is determined whether or not there is a call connection request. If this determination is affirmative, the process proceeds to step S13, and it is determined whether or not there is a connection request to the exchange. When the caller inputs, for example, the "# 1" PB signal, it is determined that a reconnection request is made, and the process proceeds to step S14. On the other hand, for example, when "# 2" is input, it is determined that there is a request to transfer to the exchange, and the process proceeds to step S21. In step S21, the reconnection processing device 7 gives an instruction to the exchange control processing device 3 to cause the caller line to be drawn into the exchange trunk. The exchange control processing device 3 also causes the exchange 4 to display the call ticket information from the call ticket storage device 8. As a result, a caller who wishes to reconnect can semi-automatically reconnect while having the switch monitor the line status. You can also receive services such as call status consultation. As a result, it is possible to reliably reconnect.

On the other hand, if the determination in step S12 is negative, that is, if the caller does not want to reconnect the call and does not respond to the announcement and then hangs up the handset, the step is performed. In S20, the caller line is immediately opened by the conventional normal processing.

In step S 14, the reconnection data is transferred from the call ticket storage device 8 to the reconnection control device 7. In step S15, the reconnection control device 7 executes reconnection processing. Specifically, the reconnection control device 7 selects the call trunk 12 and captures the line for reconnection again. At first, it operates so as to capture the same line recorded in the line of the originally cut call ticket based on the information from the call ticket storage device 8. However, due to line failure, line congestion, etc. If the call cannot be captured, the bypass circuit is captured and the reconnection circuit name is recorded in the call ticket. As a result, the line status of the reconnection can be grasped later. An example of a call ticket is shown in FIG. When the reconnection is performed, the number of connected calls becomes "2", and when detouring via the Hawaii line, for example, "HWI" is entered in the reconnection line name.

Next, the reconnection control device 7 performs a redialing process through the captured line based on the incoming telephone number obtained from the call ticket. This redialing transmission processing is performed from the transmission register (ORT) 14. Then, a ringing tone is sent from the ringing tone trunk (RBT) 15 to the caller side, and a ringing signal tone is sent from the ringing signal trunk (RGT) 16 to the callee side. The calling register (ORT) 14 is automatically disconnected from the line by connecting the ring back tone trunk (RBT) 15 and the ring back signal trunk (RGT) 16 to the caller side and the callee side, respectively. To be done. When the called party responds to the ringing tone and lifts the handset, the line status changes from the on-state to the off-state, and the call trunk (IOT) that has been held in advance causes the called party to receive the call. The person's side is connected and the call can be immediately started. After this, the ring back tone trunk (RBT) 15 and the ring back signal trunk (RGT) 16 are no longer needed and are disconnected and opened.

It should be noted that although it is determined that the receiving side line has been disconnected due to a failure of the communication line or the like, the reconnection call cannot be made when the called side has not dropped the handset. For this reason, at this time, the busy tone is sent to the caller side, the callee side makes it look as if the caller is busy, and the receiver is temporarily lowered to request the caller side to make another call.

In step S16, it is determined whether or not the caller's line is disconnected. If it is determined that the determination is affirmative, the process proceeds to step S17, and the call ending process is executed. This processing is performed by the same normal processing as the conventional one. When the process proceeds to step S18, reconnection information is added to the call ticket, and the process proceeds to step S19 where the process of adding these to the caller charging file is performed.

By the above operation, when the line is disconnected against the intention of the caller, if the caller desires to continue the call, the caller simply indicates the intention to continue the call by the PB signal. It will be possible to reconnect to the same caller with just that, and the effect of eliminating the need to call again will be eliminated.

Although the above embodiment shows the operations of the caller / callee lines and the exchange, in the relay exchange of the international telephone, the ORT 14, RBT 15, RGT 16 of FIG. 2 are not trunks but the exchange 1 It is included in one signal processing device which is an external device. Further, the response of the repeater exchange, the detection of disconnection, etc. are carried out by transmitting and receiving a signal of a common control line different from the communication line, unlike the ON / OFF of the above-mentioned embodiment. Even in the case of the ISDN line, the effect of the present invention is the same.

FIG. 7 is a diagram showing a timing chart of the process of detecting / reconnecting a disconnected call according to the present embodiment, in which the vertical axis shows the line state viewed from the call trunk (IOT) 12, and the horizontal axis shows. Time t has been taken. As shown in the figure, when a called party answers at a time t0 by answering a call, the communication line changes from on to off, and the off state is maintained during a call. At time t2, if the receiver's line is inadvertently turned on for some reason, the fixed time T is measured, and after the fixed time T has passed, the announcement device 5 is connected to the sender's line, and Guidance is sent out. When the caller indicates the intention of reconnection, reconnection processing is performed, and when the receiver side raises the handset at time t3 and responds, the state of the communication line changes from on to off. In this way, the line is reconnected, and when the call ends at time t4, the line is released after the elapse of a certain time T 1.

In the charging process (steps S4 and S18) in the above embodiment, the time t0 is first recorded and the difference between the time t0 and the disconnection time t2 is obtained. Then, the call frequency is calculated by dividing the time difference by the charging period. Next, when reconnecting at time t3, the difference between the response time t3 on the called party side due to reconnection and the call end time t4 is obtained, and this time difference is divided by the charging period to calculate the call frequency. Subsequently, the communication frequencies are summed up and recorded in the communication frequency column of the communication ticket (see FIG. 6). After that, it is stored in the caller billing file and transferred to the billing process.

As described above, in the call ticket provided by the present embodiment, the number of connected calls is incremented each time the number of reconnections is increased, and the number of connections is detoured. , The line name used is recorded. In addition, if there is a reconnection, the final call frequency including the call frequency at the time of the first connection is recorded, and it is not necessary to issue a new call ticket for each reconnection. Can be rational.

In the above-described embodiment, the reconnection control device 7 or the exchange control device reads the data required for reconnection from the call ticket in the call ticket storage device 8. However, the data necessary for temporary reconnection may be stored in a RAM or the like attached to the central processing unit and read from the RAM or the like.

[0031]

[Effect of device]

 As is apparent from the above description, the present invention has the following effects. (1) When the call line is disconnected during the call, while the call is being transferred by the PBX on the receiving side, or when the other party disconnects the line when the purpose of the call is not yet achieved. , The calling party can call the other party without redialing the called party's telephone number.

(2) When the caller side wants to reliably reconnect to the other party, the caller's line can be connected to the exchange to receive the reconnection service by the operator.

(3) Since the billing process for reconnected calls can be put together as one call, in other words, the billing process does not become multiple, the number of calls reflects the actual situation. Therefore, the billing process becomes rational.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a switching device used in the present invention.

FIG. 2 is a block diagram showing a configuration of a main part of the exchange shown in FIG.

FIG. 3 shows a timing chart of a response / disconnection detection process during a normal call.

FIG. 4 is a flowchart showing the operation of an embodiment of the present invention.

5 is a flowchart continued from FIG. 4. FIG.

FIG. 6 is a diagram showing an example of a call ticket.

FIG. 7 shows a timing chart of detection / reconnection processing of a disconnected call.

[Explanation of symbols]

1 ... Exchanger, 2 ... Central processing unit, 3 ... Exchange stand control unit,
4 ... Switchboard, 5 ... Announcement device, 6 ... PB signal receiving device, 7 ... Reconnection control device, 8 ... Call ticket storage device, 11 ... Line link network (LLN), 1
2 ... Call trunk (IOT), 23 ... Trunk link network (TLN), 14 ... Outgoing register (OR
T), 15 ... Ring tone trunk (RBT), 16 ... Signal tone trunk (RGT).

Claims (6)

[Scope of utility model registration request] 1. A telephone exchange call reconnecting device capable of reconnecting a line during a call disconnection due to circumstances on the callee side, wherein a caller side is provided after a certain period of time from the line disconnection. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A telephone exchange call comprising a signal receiving device and a reconnection control device that performs a reconnection process based on the held reconnection data when a reconnection instruction is given by the PB signal. Reconnect device. 2. A telephone exchange call reconnecting device capable of reconnecting a line when a call is disconnected due to circumstances of the callee side, in a caller side after a predetermined time from the line disconnection. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A telephone comprising a signal receiving device and a reconnection control device for performing a reconnection process based on the reconnection data transferred from the call ticket when a reconnection instruction is given by the PB signal. Switched call reconnect device. 3. A telephone exchange call reconnecting device capable of reconnecting a line when a call is disconnected due to circumstances of the callee side, in a caller side after a predetermined time from the line disconnection. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A signal receiving device, a reconnection control device that performs a reconnection process based on the held reconnection data when a reconnection instruction is given by the PB signal, and a communication record before and after the reconnection, and A telephone exchange call reconnection device comprising: a call ticket creating device that adds up the charge data after reconnection with the charge data before reconnection and processes the call ticket as one call. 4. A telephone exchange call reconnecting device capable of reconnecting a line when a call is disconnected due to circumstances on the callee side, in a caller side after a predetermined time from the line disconnection. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A signal receiving device, a reconnection control device that connects the caller side line to the exchange when the transfer of the exchange is instructed by the PB signal, and the retained reconnection data is displayed on the exchange. A telephone exchange call reconnecting device, comprising: 5. A telephone exchange call reconnecting device capable of reconnecting a line during a call that is disconnected due to circumstances on the callee side, in a caller side after a predetermined time has elapsed since the line was disconnected. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A signal receiving device, a reconnection control device for connecting the caller side line to the exchange when an instruction to transfer the exchange is given by the PB signal, and reconnection data transferred from a call ticket for the exchange. 2. A telephone exchange call reconnecting device, comprising: 6. A telephone exchange call reconnecting device capable of reconnecting a line when a call is disconnected due to circumstances on the callee side, in a caller side after a predetermined time from the line disconnection. Announcement device that sends guidance asking if you want to reconnect to the line, and PB that receives the PB signal input from the caller side telephone
A signal receiving device, a reconnection control device that connects the caller side line to the exchange when the transfer of the exchange is instructed by the PB signal, and the retained reconnection data is displayed on the exchange. And a switching ticket control device for recording the communication records before and after reconnection, and adding a billing data after the reconnection with billing data before the reconnection to process the call ticket as a single call. Telephone exchange call reconnecting equipment.