JPS61154249A - Telephone exchange system - Google Patents

Abstract

PURPOSE:To allow the user to get a telephone call immediately even if the user moves to other place by allowing an exchange to transmit a call signal to a terminal device when the telephone incoming call to the incoming number of a terminal device is given via an external line and when the inputted incoming number and the incoming telephone number are coincident to connect the external line to the telephone set. CONSTITUTION:When a call is given from an exchange of a telephone station 36 or an extension, a called telephone number is inputted to the exchange 31 as digital information. The exchange 31 discriminates whether the number called succeedingly is a specific registration number assigned to a pocket bell 33. When the number if the number of the pocket bell 33, the call signal is transmitted to the pocket bell of the said number to ring the bell of the pocket bell 33. When the possessor of the pocket bell 33 notices the bell tone, the possessor comes near the nearly telephone set 34, an incoming key of the telephone set is used to change tentatively the incoming number to the own pocket bell number.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a telephone switching system, and more particularly to a telephone switching system that includes telephones, a switchboard for connecting the telephones, and, in addition, a terminal device.

[Prior Art] Conventionally, private telephones and exchanges for connecting and switching the telephones are
It is widely used within the same company organization or within the same building. Each telephone connected to such a private branch exchange has a unique incoming call number, a so-called extension number, and this number is used to receive calls to each private branch telephone. One private telephone is used by one or more users, but in conventional switching systems, if you want to talk to a certain user, you call the private telephone at the location where that user is thought to be currently. The call was made using this method. but,
This is fine if the user of the private telephone is nearby, but depending on the nature of the work, the user may have moved to another room, so it is best to connect to the private telephone first. However, there were cases where the user had to reconnect and exchange the phone at the location where the user is currently located. In other words, in conventional switching systems, instead of ``calling the person you want to call,'' ``the connection is made to the location where the user is thought to be.''

On the other hand, if you think about it from the standpoint of the person receiving the call, if you move from the place where your phone is, carrying a conventionally well-known pager, you will receive a call using the phone you are moving to. You may want to call the person back. However, with conventional pagers, even when a call is known, it is necessary to ask the person who received the call who is calling. Therefore, the conventional method of using a pager has the disadvantage that it increases the burden on the person receiving the call, and also requires a person to take the call, making it impossible to use it on an individual basis.

[Purpose] The present invention solves the above-mentioned problems, and allows the user to immediately answer an incoming call even if he or she moves to another location, and also eliminates the need for an intermediary as in the past. To provide a telephone exchange system including a terminal device that does not require complicated operations.

[Structure of the Invention] In order to achieve the following objects, the present invention provides a telephone set having a means for inputting and changing a called number, a terminal device having a unique called number, and a terminal device for receiving a called number. an exchange having means for transmitting a calling signal, and the exchange transmits a calling signal to the terminal device when an incoming call to the incoming call number of the terminal is made via an outside line, and at this time, the switching A configuration will be described in which the received call number and the received telephone number are compared, and when the two match, the outside line and the telephone are connected.

FIG. 1 shows an embodiment of a telephone according to the invention.

FIG. 1 schematically shows the top of a private telephone. 1st
In the figure, reference numeral 5 indicates a housing of the telephone, and a receiver 6 configured in a conventional manner is connected to the housing 5 via a curl cord or the like. A numeric keypad 4 is provided on the second side of the housing 5 in the same manner as a conventional telephone, and the numeric keypad 4 is used to make a call and to enter and change an incoming call number according to the present invention, which will be described later.

Two keys indicated by numerals 1 and 2 are provided at the top of the numeric keypad 4. The bell party key 1 is composed of a switch element incorporating a display element such as a lamp, and the word "bell" is engraved or printed on the surface of the switch as shown in the figure. The incoming call key 2 also includes a switch element incorporating a similar display element.

On the other hand, FIG. 2 shows the configuration of a private digital branch exchange 50 that connects and exchanges the telephone set in FIG. 1 within the premises. The exchange consists of a communication path system indicated by the reference numeral 20 and a control system indicated by the reference numeral 30. Reference numeral 24 in Figure 2
or 25 is the telephone according to the present invention shown in FIG. Telephones 24 and 25 are connected to a switch circuit network 21 in communication line system 20 through line circuits 26 that perform well-known level conversion and the like. The switching circuit network of the communication path system 20 is composed of a large number of switching elements, similar to those in known exchanges, and is used to connect telephones corresponding to a given called number, or to connect relay lines on the input side and each telephone set. Do the following. The present exchange and an external line exchange are connected via a known line circuit indicated by the reference numeral 30'. A known monitoring circuit 29 is connected to the switch network 21 for monitoring connection exchange operations.

The operation of the switch elements of the switch network 21 is controlled by the central processing unit 2 via a known switch control circuit 22 that converts a logic level signal into a signal level capable of driving the switch elements.
3. The central processing unit 23 is composed of a known microcomputer element or the like, and has a memory 27 that stores a control program and a called number inputted in the called number input and change operation described later. The central processing unit 23 is connected to a signal line via a signal transmission/reception circuit 28, which is a known interface circuit, and this signal line is used for exchanging control signals with an external exchange.

Next, FIG. 3 shows the overall configuration of the switching system of the present invention, which is comprised of the above-mentioned telephone set, switchboard, and Bokeratoll device.

In FIG. 3, the reference numeral 34 is a telephone that can input and change the incoming call number shown in FIG.
are extension telephones similar to those known in the art, and these are connected to the digital exchange shown in FIG. 2 above. The exchange 31 is connected to the exchange of a telephone office 36 in a known manner.

The exchange 31 also has a pager transmitter 32. The pager transmitter 32 calls a specific pager 33 based on a command from the digital exchange 31 and makes a ringing sound. That is, in the present invention, the pager 3
3 has a unique registration number, and by dialing that number from an outside line or extension telephone 35,
1 is notified of the call, and the exchange 31 is configured to ring the pager 33 via the pager transmitter 32 based on this.

Next, the operation of the above overall configuration will be explained with reference to the flowchart of FIG.

When a call is made via the exchange at the telephone office 36 or from an extension telephone in step S1 of FIG. 4, the telephone number of the call is input to the exchange 31 as digital information.

The exchange 31 then determines in step S2 whether the called number is a unique registration number assigned to the pager 33. If this step is negative, the process moves to step S3, and the line is connected to the extension telephone 34 or 35 by a normal connection operation.

If step S2 is affirmative, that is, if the called number is the number of the pager 33, the process moves to step S4, and a calling signal is sent to the pager 33 of that number via the pager transmitter 32. , rings pager 33.

Here, if the owner of the pager 33 notices the ringing sound, the owner proceeds to step S5. In S6, the terminating number of the nearest variable terminating number telephone 34 is changed. That is, in step S5, the pager owner goes to the nearest telephone 34, and in step S6, uses the incoming call key 2 of the telephone shown in FIG. change.

The operation is performed by first pressing the incoming call key 2 and then using the numeric keypad 4 to input the incoming call number of the pager. As a result, in step S6, the called number inputted from the telephone to the central processing unit 23 of the exchange is transmitted via the line circuit 26 of FIG. 2.

In step S7, the central processing unit 23 compares the called number with the above-mentioned temporarily changed number. If the numbers match, a line connection is made in step S9, and the outside line or extension telephone that made the call is connected to the telephone whose incoming call number has been temporarily changed, and a call is made.

If the numbers do not match in step S7, the number input in step S6 is registered as the incoming call number of the telephone in step S8. As a result, from now on, incoming calls to the pager can be received using this telephone.

On the other hand, the bell key 1 of the telephone shown in FIG. 1 is used in the following manner. For example, one pager and a telephone with a variable dialing number are paired as one and the same dialing number is assigned. If the bell key 1 is not pressed, the telephone operates like a normal extension telephone,
When the bell key 1 is pressed, a calling signal is sent to the paired pager as shown in the flowchart of FIG.

Here, FIG. 5 shows in detail an example of the interoffice sequence in the above configuration in relation to the control of the exchange. In FIG. 5, reference numeral 50 indicates the private branch exchange shown in FIG. 2, reference numeral 51 indicates a general telephone such as an external public telephone, and reference numeral 24 indicates the above-mentioned variable number receiving telephone. The illustration of the central office exchange is omitted here.

In the example of Fig. 5, it is broadly divided into 2, which is indicated by the symbols 52 and 53.
Two sequences were shown.

First, in the sequence 52, a dial call is made from the general telephone 51 to the telephone 24;
This is the control when the registration operation for pager call designation has already been performed.

Bell key 1 from telephone 24 in response to a dial call
When a signal 54 indicating that the registration operation has been performed is returned to the exchange, the exchange calls the pager 33 corresponding to the registered number via the transmitter 32.

During this time, a ringback tone 55 indicating that a pager is being called is returned to the general telephone 51. At this time, if the general telephone is hooked off as indicated by reference numeral 56, the pager call is canceled, but if there is no hook-off, sequence 53 is entered.

Sequence 53' of sequence 53 is the control for temporarily changing the called number shown in steps S5 to S7 and S9 in FIG. 4, and therefore detailed explanation will be omitted here. After this code 5
A call is made as shown at 7. Here, reference numeral 24' indicates the telephone closest to the destination of the user of telephone 24.

Thereafter, recovery and line disconnection operations are performed in sequence 53'', but since this process is the same as line hold and disconnection processes in known configuration exchanges, the explanation will be omitted.

Further, as shown by reference numeral 57, the exchange 50 returns the incoming call number of the telephone 24' to the original number.

FIG. 6 briefly shows the operation of the central processing unit 23 in the exchange during circuit switching.

Assuming that there is a hook-off from the general telephone at step 61, a dial tone is returned at step 62 as usual, a dialed number is received at step 63, and a call is made at step 64.

Next, in step 65, if it is assumed that the called party at this time is a telephone with a variable number, and if the call button of the pager has been pressed, the appropriate signal is received and the process proceeds to step 66, where the caller receives a call from a telephone with a variable number. Instructs the transmitting station to ring the bell. In other cases, normal processing is performed.

Now, the person who is called by the pager goes to the nearest variable number telephone set as described above and changes the registration of the called number in step 67, and then in step 68 the registered number of the called number is rewritten in the memory of the exchange. . However, when the called person goes to the originally called telephone, the caller hooks off at step 67 and the answer is changed. At this time, normal processing after step 70 is performed.

If the operator presses the bell key 1 and moves with the pager device in the manner described above, the operator can use another variable number telephone to make calls to himself without the hassle. You can receive calls without performing any operations. According to this embodiment, there is no need for a person to take over the pager as in the past, and the exchange system can be operated and used on an individual basis.

In the above embodiments, in order to simplify the explanation, the embodiments are related to local telephone calls, but the present invention can also be implemented in a general telephone exchange system. For example, it is conceivable to use the variable number telephone set shown in Fig. 1 in public telephones.

Even if the user is carrying a pager, it is possible that the user may be in a location where it will take a considerable amount of time to reach the telephone, so when the pager is ringing, a special tone or voice signal is sent to the caller to indicate this. It may also be returned as a ringback tone 55 in FIG. Even if the calling party hangs up, the pager may continue to ring until the called party issues an incoming signal, and then the calling party may be called. This allows you to receive calls without the need for an answering machine even when you are out. In addition to a pager, a slave telephone of a parent-child telephone may be used.

[Effects] As is clear from the above description, according to the present invention, a telephone having a means for inputting and changing a called number, a terminal device having a unique called number, and a terminal device of the called telephone number can be used. an exchange having means for transmitting a calling signal, and when a call to the incoming number of the terminal is received via an outside line, the exchange transmits a calling signal to the terminal device, and at this time, the switching device transmits a calling signal to the terminal device, The incoming call number is compared with the incoming phone number, and if they match, the outside line is connected to the phone, so even if the user moves to another location, there is no hassle. It is possible to provide an excellent telephone exchange system that allows incoming calls to be answered immediately without requiring any operations, and allows calls to be made using a terminal device without the need for a relay person as in the past. .

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a top view schematically showing an embodiment of a telephone according to the present invention, FIG. 2 is a block diagram showing the configuration of an exchange according to the present invention, and FIG. 3 is a top view schematically showing an embodiment of a telephone according to the present invention. FIG. 4 is a flowchart showing an example of telephone exchange control in the present invention, FIG. 5 is an explanatory diagram showing an interoffice sequence, and FIG. 6 is a diagram showing the central processing of FIG. 2. FIG. 3 is a flowchart diagram showing processing of the device. 1...Bell key 2...Incoming call key 4...Numeric keypad 23...Central processing unit 27...Memory
32... Pager transmitter 33... Pager device

Claims (1)

[Claims] A telephone set having means for inputting and changing a called number, a terminal device having a unique called number, and an exchange having means for transmitting a calling signal to the terminal device of the called number are provided, and the said exchange is configured to input and change the called number. When an incoming call is made to the incoming call number of the device via an outside line, a calling signal is sent to the terminal device, the incoming call number entered into the telephone at this time is compared with the incoming phone number, and if the two match. A telephone exchange system characterized in that an outside line is connected to the telephone.