JP2898085B2 - Telephone exchange system with waiting response function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange system with a standby response function, and more particularly, to a response connection process when a call is received by a called telephone in a telephone system connected via an exchange.

[Prior art]

In a wireless telephone system that combines a PBX, a wireless base device, and a wireless telephone, the wireless telephone can be connected to any wireless base device, is portable, and can always be called within the range of radio waves from the wireless base device It is highly convenient and its use is rapidly expanding in recent years. But,
While it is convenient to always be called wherever the called party is, it can be inconvenient at times and places. For example, it is often inconvenient to answer immediately, such as an incoming call during an interview with an important partner or an incoming call while working in a place where you can not release your hands. In such a case, the control of the exchange will automatically tell the person who received the call that you should wait because you will call later, and then simply call the person you just received at your own convenience. It would be very convenient if you could call and talk. As a similar function in the prior art, there is a call holding function in a car telephone. That is, when an incoming call is received from the other party to the car telephone, or when the hand cannot be released during driving or the like, the temporary hold button provided on the car telephone is operated, and the talker is connected to the other party, and the call is made. Is temporarily put on hold. Thereafter, by operating the temporary hold button again on the mobile phone, the mobile phone is released to the hold state and the caller of the other party and the subscriber of the mobile phone are in a talking state. A document describing the call holding function in the above-mentioned car telephone is "Car Phone" published by the Institute of Telecommunications of Japan (page 194-
Page 194, 9.4.2 Incoming Call Connection).

[Problems to be solved by the invention]

However, the above-mentioned temporary hold function requires that the other party wait for a long time because the call is held on hold for the incoming call of the other party. It is not suitable for the situation where you do not talk when you want. SUMMARY OF THE INVENTION An object of the present invention is to provide a telephone exchange system in which a called party who receives an incoming call can notify a calling party of a later call by a simple operation, and simplify connection processing at the time of a later call, thereby improving convenience. To realize a telephone exchange system that provides a high connection service.

[Means for Solving the Problems]

In order to achieve the above object, in a telephone switching system according to the present invention, when an incoming call is connected to a telephone of a called party (hereinafter abbreviated as a called telephone), an instruction from the called telephone sets the incoming call to the called telephone. A function of switching the connection of the incoming call to the talkie apparatus, a function of temporarily storing the telephone number information of the caller whose connection has been changed, and a function of temporarily stopping the connection between the caller and the talkie apparatus. In accordance with an instruction from the telephone, a function is provided for connecting the telephone of the caller and the called telephone and making a call using the stored caller telephone number information. The present invention is implemented in a general telephone exchange system. In a particularly preferred embodiment, the telephone exchange is a private branch exchange (PBX), the telephone is a radio telephone, and the radio telephone and the PBX are radio base stations. Implemented in a wireless telephone system coupled via a device. Also, as a preferred embodiment, a function is provided for switching the connection to the transfer destination when the caller telephone number information cannot be recognized by the exchange (PBX), and further, a standby response process or a transfer process is performed. Means is provided for making a determination in the PBX or by an instruction from the called telephone.

[Action]

In the telephone switching system, when the incoming call received by the called telephone cannot be answered immediately at the discretion of the telephone user, the standby response control signal provided on the telephone is operated to transmit the standby response control signal to the telephone. To the exchange, the call currently arriving at the called telephone is switched to the talkie device, a message to the effect that the call is to be made later by the talkie is sent to the caller, and the call on the calling side is disconnected. Prompt. At this time, the telephone number information of the caller is temporarily stored in a memory in the called telephone or the exchange, and then, when the user of the called telephone operates the standby response button again, a control signal is received. A call is sent from the calling telephone to the exchange, and a connection path is formed between the telephone and the subscriber who called earlier using the caller's telephone number information to create a communication state. If the caller's telephone number information cannot be recognized in the exchange when performing the standby response process, if the transfer destination is registered in advance, the connection destination between the caller and the wireless telephone is added to the transfer destination. Connection, and the destination subscriber makes a proxy response. If the transfer destination has not been registered, the calling of the telephone subscriber is continued. Furthermore, it is also possible to select whether to perform a waiting response process or a transfer process as a determination process in the exchange, or to select according to an instruction from a telephone,
The application of connection services can be expanded.

【Example】

Hereinafter, an embodiment of a telephone exchange system with a waiting response function according to the present invention will be described. FIG. 1 is a system configuration diagram of one embodiment of a telephone exchange system according to the present invention, particularly a wireless telephone system in which the effects of the present invention can be most expected. In FIG. 1, a PBX 100 includes a speech path switch 101, a processor (exchange connection control unit) 102, and a memory (storage of various data) 103 as main components, and the speech path switch 101 is generally connected via a general telephone line interface device 104. A telephone 200 is accommodated, and a public network circuit 50 is
0, a wireless telephone 400 via the wireless circuit interface device 106 and the wireless base device 300, and a talkie device 107 for message transmission. When the general telephone 200 calls the wireless telephone 400, the general telephone 200 goes off-hook, hears a dial tone, and then dials the telephone number assigned to the wireless telephone (called telephone) 400. It is formed by a route of the interface device 104, the communication path switch 101, the wireless line interface device 106, the wireless base device 300, and the wireless telephone 400, and if a subscriber of the wireless telephone 400 responds, a call can be made between the general telephone 200 and the wireless telephone 400. Done. But,
When an incoming call is received by the radio telephone 400 and the subscriber of the radio telephone cannot respond immediately for any reason, when the standby response button 10 provided on the radio telephone 400 is operated, the standby response control is performed. The signal is sent to the PBX 1 via the wireless telephone 400, the wireless base device 300, and the wireless circuit interface device 106.
00 processor 102 is sent. When recognizing the standby response control signal, the processor 102 checks the telephone number information of the caller, and then sends out the telephone number information of the caller in order to have the corresponding telephone number information stored in the wireless telephone 400 side. . However, the corresponding telephone number information is not stored in the wireless telephone side, but is stored in the memory 103 in the PBX 100.
, The transmission and reception of this information is omitted. Next, the processor 102 switches the communication path, which previously connected the general telephone line interface device 104 and the wireless line interface device 106, to a connection between the general telephone line interface device 104 and the talker device 107. For example, a message such as “I can't answer right now and will call you later” is sent from the talker device 107 to the general telephone 200 of the caller. The caller who hears this message goes on-hook and waits for a call back from the other party. If the subscriber of the wireless telephone 400 completes his / her business, and wants to talk to the caller of the general telephone 200 who has just received a call, the wireless telephone 400 initiates an off-hook call from the wireless telephone 400 and dials from the PBX 100. After listening to the sound, the standby response button is operated. In the wireless telephone 400, the other party's telephone 200 at the time of the standby response process
Since the telephone number is stored in the memory, the telephone number is read from the corresponding memory and the number information is sent to the PBX 100 as a dial signal. In the PBX 100, when the processor 102 receives the telephone number information, the telephone number 200 of the subscriber of the corresponding number is received.
A connection path between the telephone and the wireless telephone 400 is formed, and the other party is called. If the other party answers, the call is started. still,
The telephone number information at the time of the standby response processing stored in the memory in the wireless telephone is deleted when the connection is established. FIG. 2 shows the internal configuration of each of the wireless telephone 400 and the wireless base device 300 in the embodiment of FIG. The whole transmitting and receiving operation of the wireless telephone 400 is controlled by the control unit 404. When calling from the radiotelephone 400, while controlling the synthesizer 403 and transmitting a call signal at a predetermined control channel frequency,
When making a call, a call channel frequency specified by the radio base station 300 is set, and call voice is transmitted and received. Microphone 4 in transmitting section 401
While transmitting a voice signal from the antenna 11 and a dial number signal from a keyboard (equipped with a standby response button in addition to the dial number push button) 409 from the antenna 406 via the transmission / reception separation circuit 405, the reception unit 402 The signal from the base station 300 is received by the antenna 406, which drives the speaker 408 via the transmission / reception separation circuit 405, and causes the lamp unit 410 to visually indicate that a call is in progress. In addition, this lamp part 4
When there is a call that has been subjected to the standby response processing by operating the standby response button, the lamp 10 is also provided with a lamp for displaying the call. The lamp unit may be a display using an LCD (liquid crystal), in addition to using an LED (light emitting diode) lamp or the like. The memory unit 407 is a unit for storing data necessary for controlling the wireless telephone 400, and is also used for storing the telephone number information of the caller when performing the standby response process. On the other hand, the configuration of the radio base station 300 is almost the same as that of the radio telephone 400.
And it is similar. The signal from the wireless telephone is received by the receiving unit 301 via the antenna 306 and the transmission / reception separating circuit 305, and further transmitted to the wireless interface device via the line interface unit 307. On the other hand, a signal from the wireless interface device is transmitted from the antenna 306 to the wireless telephone 400 via the line interface unit 307, the transmission unit 302, and the transmission / reception separation circuit 305. The control unit 304 controls the synthesizer 303 to set a frequency for the control channel, receives a signal from the radiotelephone 400, selects a vacant channel used during a call, and allocates the vacant channel to the vacant channel. Control such as setting the communication channel frequency to the synthesizer 303 is performed. FIG. 3 and FIG. 4 are sequence diagrams showing a connection flow in one embodiment of the telephone exchange system with a waiting response function of the present invention. FIG. 3 shows a connection flow when an incoming call is received by the radiotelephone (RT) 400. The vertical axis shows the flow of time, and the horizontal arrows show the flow of signals. When the subscriber of the radio telephone 400 that has received the call operates the standby response button, the processor (CPU) of the PBX switches the connection up to now to the talkie device, and the radio telephone (RT) 400 changes the processor (CPU). The caller's telephone number information sent from the CPU 102 is stored in the memory, and a lamp display 410 provided in the radiotelephone (RT) 400 indicates that standby response processing is being performed. Let it. Thereafter, the connection is released once by a disconnection signal from the processor (CPU) 102. FIG. 4 shows a connection flow in a case where the subscriber of the radio telephone (RT) 400 performs a calling operation after the standby response to make a call with the other party who has just received the call. When the subscriber of the radiotelephone (RT) 400 goes off-hook, the same processing as in a normal outgoing connection is performed, and as a result, a dial tone is sent from the PBX side. Where the radiotelephone (RT) 40
When the subscriber 0 operates the standby response button 10, the telephone number information of the caller at the time of performing the standby response process, which is stored in the memory 407 in the wireless telephone, is read, and the corresponding telephone number is dialed. The information is sent to the processor (CPU) 102 of the PBX 100 as information. The PBX processor 102 calls the other party based on the received dialed digit information, and if the other party answers, the call is started. At this time, when the wireless telephone 400 recognizes that the other party has answered, the caller's telephone number information stored in the memory 407 is deleted.
At the same time, the lamp 410, which indicates that the waiting response call exists, is extinguished. FIG. 5 shows a process in a case where the PBX 100 cannot recognize the caller telephone number when receiving the waiting response signal from the wireless telephone 400. That is, when the standby response signal is received by the CPU 102 of the PBX 100, it is determined whether or not there is caller telephone number information (if the connection is within the own station, the caller telephone number can be recognized. In an example such as an incoming connection via a central office trunk, the calling party telephone number cannot be recognized.) If the telephone number can be recognized, the standby response processing is performed as described above. If the caller telephone number cannot be recognized, it is next determined whether or not the transfer destination has been registered. If the transfer destination has been registered, the connection between the caller and the wireless telephone is released ( That is, the call of the wireless telephone is stopped) The connection is switched to the transfer destination subscriber. Thus, the caller will be talking to the destination subscriber. or,
If the transfer destination has not been registered, even if the standby response button 10 is operated by the radio telephone 400, the call is continued as it is, and the subscriber of the radio telephone 400 waits for a response. In the example of FIG. 5, the determination as to whether to perform the standby response process or to perform the transfer connection has been described on the condition that the caller's telephone number is recognized by the PBX or not. As another method, it is also possible to transmit a control signal from the wireless telephone 400 as a separate signal for standby response processing and for transfer connection processing. In this case, the wireless telephone 400
In this case, it is necessary to operate different buttons by request processing. As still another method, a service class that determines a service that can be received when a standby response signal is received is assigned to each terminal of the wireless telephone 400, and when a request is received from the wireless telephone, the service class is determined. , A determination is made as to whether to perform standby response processing, transfer processing, or call continuation. In addition, even when performing transfer processing, it is possible to register multiple transfer registration destinations, select which transfer destination to select by operating the button on the wireless telephone, and send a signal indicating the transfer destination to the PBX It is. In the example of FIG. 3, an incoming call comes in to the radio telephone 400, and after ringing the ringing bell, the subscriber of the radio telephone 400 responds according to the judgment or a standby response button for requesting the standby response processing. Although the operation is described under the condition of whether or not to operate 10, if it is desired to stop the bell ringing, the standby response button 10 is operated in advance, and the state is stored in the wireless telephone. When there is an incoming call on the corresponding wireless telephone, the bell ringing is not performed and the standby response signal is immediately sent to the PBX.
It is also possible to send to the side. At this time, the presence / absence of the call that has undergone the standby response processing is confirmed on the display of the lamp 410 provided on the wireless telephone 400. In the above description, the number of calls for which the standby response process is requested is omitted in the description, but one call is required for each wireless telephone.
It is not necessary to limit to one call, and it is of course possible to process a plurality of calls simultaneously. In the above description, the case where the terminal telephone is a wireless telephone is described as an example, but the same function can be realized by a wired telephone instead of the wireless telephone. Although the exchange is described using a PBX as an example, the same function can be realized by a general exchange (for office or other use) instead of the PBX.

【The invention's effect】

As described above, according to the present invention, when there is an incoming call to the telephone, if the call cannot be answered immediately, by a very simple operation such as pressing the standby response button on the wireless telephone,
Inform the other subscriber that you cannot respond immediately,
A new connection service that allows you to call the other party and make a call when you want is possible.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a radio telephone system which is one embodiment of a telephone exchange system with a waiting response function according to the present invention, and FIG. 2 is a diagram showing a radio telephone 400 and a radio base unit 300 in the embodiment of FIG. FIG. 3 is a sequence diagram of a standby response process when an incoming call is received by a wireless telephone, and FIG. 4 is an outgoing connection from the wireless telephone.
FIG. 5 is a sequence diagram for performing a connection process to a standby responder, and FIG. 5 is a flowchart showing an operation process when a caller telephone number cannot be recognized when a standby response request is made. EXPLANATION OF SYMBOLS 10: Standby response button, 100: PBX, 101: Communication path switch, 102: Processor, 103: Memory, 104: General telephone interface device, 105: Office line trunk, 106
…… Wireless line interface device, 107 …… Talkie device, 200 …… General telephone, 300 …… Wireless base device, 400…
… Wireless telephone, 500 …… Public network.

Continuation of front page (56) References JP-A-63-128854 (JP, A) JP-A-58-164337 (JP, A) JP-A-62-130045 (JP, A) JP-A-2-214358 (JP) JP-A-2-268548 (JP, A) JP-A-60-130251 (JP, A) JP-A-63-171053 (JP, A) JP-A-59-144259 (JP, A) 63-103595 (JP, A) JP-A-60-77539 (JP, A) JP-A-62-286347 (JP, A) JP-A-64-23656 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 1/57 H04M 3/42-3/58 H04Q 3/58

Claims (1)

(57) [Claims] In a telephone system comprising a plurality of telephones interconnected via a telephone exchange, at least a part of the plurality of telephones is adapted to receive an incoming call from a caller and to receive the incoming call later. A standby response signal generating means for transmitting a standby response signal notifying of a response to the telephone exchange; and a storage means for storing a telephone number of the caller's telephone transmitted from the exchange by the standby response signal. Means for dialing the caller using the telephone number recorded in the storage means, wherein the telephone exchange registers a transfer destination telephone number, and when the standby response signal is received, If the telephone number of the calling telephone can be recognized, the connection path connecting the caller and the telephone that sent the standby response signal is switched so that the caller and the talkie device are connected. Switching to be performed Means, means for sending the telephone number of the caller to the telephone set which sent the waiting response signal, and after the connection between the caller and the talkie apparatus is established, the caller once goes on-hook to complete the connection. Then, when the telephone that sent the standby response signal is dialed, means for making a connection between the caller's telephone and the telephone that sent the standby response signal, and receiving the standby response signal In the case where the telephone number of the calling telephone cannot be recognized, there is provided a means for changing the connection to the transfer destination telephone number of the registration means instead of changing the connection to the talkie device. A telephone exchange system with a standby response function.