JP3037165B2 - Key telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone apparatus which accommodates a wireless terminal such as a portable telephone when the wireless terminal receives an incoming call from a partner terminal and the wireless terminal is out of the service area. And a key telephone apparatus having a function of automatically transferring a call through a public line or the like.

[0002]

2. Description of the Related Art Conventionally, there has been known a key telephone apparatus which accommodates a wireless terminal in addition to a wired terminal. This type of key telephone device includes a wireless terminal and a transmitting / receiving unit that performs transmission and reception with the wireless terminal via a wireless line. For example, Japanese Patent Application Laid-Open No. Hei 7-240951 discloses a key telephone main unit connected to a central office line, a key telephone and a base station respectively connected to the key telephone main unit, and a radio line to the base station. A cordless handset connected thereto, and a charge detection unit that detects whether or not the cordless handset is charging and notifies the key telephone main unit, and the key telephone main unit receives a notification from the charge detection unit. There is disclosed a key telephone apparatus that determines whether a call is received by a key telephone or a cordless handset based on the key telephone.

Japanese Patent Application Laid-Open No. Hei 5-218965 discloses that when a cordless handset is out of a cordless call area, a call is received by a base unit and a message of the other party is recorded. There is disclosed a cellular cordless answering machine in which a base unit can automatically call a mobile unit via a wired line and transmit a recorded message.

[0004]

By the way, in the above-mentioned conventional key telephone apparatus and the like, when a radio terminal is out of the service area and an incoming call is received, the radio terminal is busy or busy and is not connected. Therefore, the other party (the caller) waits until the wireless terminal moves from the outside of the service area to the service area, or, if a plurality of telephone numbers are assigned to the wireless terminal, other than the busy telephone number. You have to call back to your phone number.
For this reason, the conventional key telephone device described above has a disadvantage that the usability is very poor for the other party. The present invention has been made under such a background, and has as its object to provide a user-friendly button telephone device.

[0005]

[0006]

According to a first aspect of the present invention, there is provided a wireless terminal to which a plurality of telephone numbers capable of receiving a call from a partner terminal via a first or second communication path are assigned. The wireless terminal is within its service area
The wireless terminal is accommodated via a wireless line.
A wireless terminal containing means that the storage means to store a predetermined telephone number for originating the second said terminal via a communication path, or the wireless terminal exists in the service area monitoring means to monitor whether, if the wireless terminal based on the monitoring result of the monitoring unit is present in the service area, the radio terminal through the first communication path from the terminal of the other party when a call is originated for the control means to transfer the call from the terminal of the other party on the basis of the telephone number stored in said storage means to the radio terminal via the second communication path, and, the when there is an incoming call via the second communication path to the wireless terminal, key telephone control with an acknowledgment means to confirm the presence or absence of a response signal transmitted from the wireless terminal to the second communication path
And a device, the first communication path, the key telephone
A communication path from a control device to the wireless terminal via the wireless line , wherein the second communication path is the key telephone
A first or second wireless device that is installed at a different location from the control device and communicates with the wireless terminal via another wireless line when the wireless terminal is within its service area From the wireless terminal via the other wireless line
A communication path to the general wireless terminal of the wireless terminal in the first wireless device and the general cordless terminal of the wireless terminal in the second wireless device as the predetermined telephone number. The control means transmits any one of the telephone numbers stored in the storage means to the second communication path, and then the response confirmation means confirms the response signal. If not, the transmission of the telephone number to the second communication path is repeated based on the telephone number stored in the storage means.

[0007] According to a second aspect of the invention, the key telephone system according to claim 1, before Symbol control means, when a pre-Symbol response confirmation unit to confirm the response signal, the call from the terminal of the other party Is transferred to the wireless terminal via the second communication path.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the key telephone device according to the first embodiment of the present invention.
In this figure, reference numeral 1 denotes a key telephone control device installed in a business establishment. In this key telephone control device 1, 1a is a central control unit that controls each unit of the device,
Details of the operation of the central control unit 1a will be described later. Reference numeral 1b denotes an external line interface unit that interfaces between the central control unit 1a and the public lines 2a and 2b. The public lines 2a and 2b are connected to a wireless base station via a public network (not shown). This radio base station
For example, in a PHS (Personal Handy Phone System), wireless communication is performed with a wireless terminal accommodated therein.

Reference numeral 1c denotes a response confirmation unit for confirming a response signal input to the external line interface unit 1b via the public lines 2a and 2b. If no response signal is input for a predetermined time or more, it is determined that there is no response. If a response signal is input within a predetermined time, it is determined that there is a response. Here, the response signal is a signal indicating that there is an incoming call at the terminal to be called by the key telephone controller 1. Reference numeral 1d denotes a wired terminal interface unit interposed between the central control unit 1a and the wired terminal 3, and performs a connection between the wired terminal 3 and the central control unit 1a under the control of the central control unit 1a.

Reference numeral 4 denotes a wireless terminal having an antenna A1. This wireless terminal 4 plays a role as a general cordless terminal in a business office, while a PH
Serves as an S terminal. The wireless terminal 4 is assigned a plurality of telephone numbers, such as a telephone number for a PHS terminal, in addition to the telephone number for a general cordless terminal described above. Reference numeral 1e denotes a wireless terminal interface unit having an antenna A2, which takes an interface between the central control unit 1a and the wireless terminal 4 via a wireless line.

The wireless terminal 4 is a key telephone controller 1
In this case, a wireless line for position registration of the wireless terminal 4 is formed at regular intervals between the antennas A1 and A2 under the control of the central control unit 1a. On the other hand, when the wireless terminal 4 exists outside the service area of the key telephone controller 1, no wireless line for location registration is formed between the antennas A1 and A2.

Reference numeral 1f denotes a status monitoring unit for monitoring the status of the above-mentioned location registration radio line. When the radio line is formed at regular intervals, the radio terminal 4 is within the service area. The state monitoring signal indicating that
Output to a. On the other hand, when a wireless line for position registration is not formed for a fixed time or more, the state monitoring unit 1f outputs a state monitoring signal indicating that the wireless terminal 4 is located outside the service area.

1g stores a plurality of telephone numbers assigned to the wireless terminal 4. As the plurality of telephone numbers, in addition to the telephone numbers for general cordless terminals described above,
There are phone numbers for HS terminals.

Next, the operation of the key telephone apparatus according to the first embodiment will be described with reference to the flowchart shown in FIG. In FIG. 1, when the other party inputs the telephone number (for general cordless) of the wireless terminal 4 from his / her own terminal (not shown), for example, from a public network (not shown),
An incoming signal is input to the central control unit 1a via the public line 2a and the external line interface unit 1b. This allows
After detecting the incoming call in step S201 shown in FIG. 2, the central control unit 1a proceeds to step S202.

In step S202, the central control unit 1a
Starts monitoring whether the wireless terminal 4 exists outside the service area based on the state monitoring signal input from the state monitoring unit 1f, and then proceeds to step S203. In step S203, the central control unit 1a sends the status monitoring unit 1
Based on the state monitoring signal input from f, it is determined whether the wireless terminal 4 exists outside the service area.
That is, when a state monitoring signal indicating that the wireless terminal 4 is within the service area is input, the central control unit 1a sets the determination result of step S203 to “NO”,
Proceeding to step S204, connection / call processing is performed. That is, the central control unit 1 a
e, and transmits a connection signal to the wireless terminal 4 via the antenna A2. As a result, the wireless terminal 4 and the other terminal (not shown) are connected via the wireless line and the public network, and are in a state where a call can be made.

On the other hand, when a state monitoring signal indicating that the wireless terminal 4 is out of the service area is input, the central control unit 1a determines "YES" in step S203.
To step S205. In step S205, the central control unit 1a refers to the plurality of telephone numbers stored in the information storage unit 1g, and refers to a telephone number (PHS) other than the telephone number (for general cordless) that could not be connected now.
Is read from the information storage unit 1g, and then the process proceeds to step S2.
Proceed to 06.

In step S206, the central control unit 1a
Performs automatic transmission processing based on the PHS telephone number read from the information storage unit 1g in step S205. That is, the central control unit 1a transmits the telephone number for the PHS to the external line interface unit 1b and the public line 2.
After transmission to the public network via b, the process proceeds to step S207. As a result, in the public network, connection processing for the wireless terminal 4 is performed.

When the wireless terminal 4 is within the service area of the PHS, the wireless terminal 4 is connected to a public network via a wireless line, and a response signal is transmitted from the public network to the public line 2b. The data is input to the external line interface unit 1b via the interface. On the other hand, when the wireless terminal 4 exists outside the service area of the PHS, the wireless terminal 4 is not connected to the public network via the wireless line, and thus no response signal is transmitted from the public network.

In step S207, the central control unit 1a
Determines whether the response confirmation unit 1c has confirmed the above-described response signal. Now, assuming that the wireless terminal 4 is within the service area of the PHS and that the connection processing between the public network and the wireless terminal 4 has been completed, a response signal is sent from the public network via the public line 2b. Is sent to the external line interface unit 1b.

Thus, the response signal is confirmed by the response confirmation unit 1c. Accordingly, the central control unit 1a sets the determination result of step S207 to "YES", and proceeds to step S208, where the call of the terminal of the other party is The data is transferred to the public network via the public line 2b. Thereby, the terminal of the other party and the wireless terminal 4 are automatically connected via the key telephone controller 1 and the public network.

On the other hand, when the wireless terminal 4 is out of the service area of the PHS, the public network is not connected to the wireless terminal 4, so that the above-described response signal is sent to the external line interface 1b via the public line 2b. Not entered. Therefore,
Since the response signal is not confirmed by the response confirmation unit 1c, the central control unit 1a sets the determination result of step S207 to "NO" and proceeds to step S209. Step S2
In 09, the central control unit 1a stops transmitting to the wireless terminal 4 via the public network, and returns to step S202 to repeat the above operation.

As described above, according to the key telephone apparatus according to the first embodiment, since the wireless terminal 4 as a general cordless terminal exists outside the service area of the key telephone controller 1, Even when the terminal is not connected, the call of the other party is automatically transferred to the wireless terminal 4 via the public network, so that the effect of improving the usability of the other party is obtained.

<Second Embodiment> Next, the structure of a key telephone apparatus according to a second embodiment of the present invention will be described with reference to FIG. 3, portions corresponding to the respective portions in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 3, wireless devices 5, 6 and public lines 2c, 2d are newly provided.

The wireless device 5 shown in FIG. 3 is installed at a place different from the key telephone control device 1 in the office, and has almost the same function as the key telephone control device 1. That is, when the wireless terminal 4 exists within its service area, the wireless device 5 communicates with the wireless terminal 4 via the wireless line. The wireless device 5 is connected to the key telephone controller 1 via a public line 2c, a public network (not shown), and public lines 2a and 2b. Therefore, the wireless terminal 4 is assigned a telephone number for a general cordless terminal for making a call via the wireless device 5.

The wireless device 6 has the same configuration as the wireless device 5 described above, and is installed at a different location from the wireless device 5. That is, the wireless device 6 communicates with the wireless terminal 4 via the wireless line within the service area in which the wireless device 6 is in charge. The wireless device 6 is connected to the public line 2d,
Via a public network (not shown) and public lines 2a and 2b,
It is connected to the key telephone control device 1. Therefore, the wireless terminal 4 is assigned a telephone number for a general cordless terminal for making a call via the wireless device 6. In other words, in the office, the service area that the key telephone control device 1 is in charge of, the service area that the wireless device 5 is in charge of,
There are three service areas, that is, a service area in which the wireless device 6 is in charge, and a self-managed microcell system is constructed.

The wireless terminal 4 includes the above-described four types of telephone numbers, that is, a telephone number for a general cordless terminal (hereinafter referred to as a first telephone number) in the key telephone control device 1 and a general telephone number in the wireless device 5. A telephone number for a cordless terminal (hereinafter, referred to as a second telephone number), a telephone number for a general cordless terminal in the wireless device 6 (hereinafter, referred to as a third telephone number), and a telephone number for a PHS (hereinafter, referred to as a second telephone number). No. 4 telephone number).
Therefore, the information storage unit 1g of the key telephone control device 1 includes:
The first to fourth telephone numbers are stored.

Next, the operation of the key telephone apparatus according to the second embodiment will be described with reference to the flowchart shown in FIG. Now, it is assumed that the wireless terminal 4 shown in FIG. 3 exists within the service area of the wireless device 6. Now, when the other party inputs the first telephone number from his / her own terminal (not shown), for example, from a public network (not shown), for example,
An incoming signal is output to central control unit 1a via public line 2a and external line interface unit 1b. This allows
After detecting the incoming call in step S401 shown in FIG. 4, the central control unit 1a proceeds to step S402.

In step S402, the central control unit 1a determines whether the wireless terminal 4 is out of the service area based on the state monitoring signal input from the state monitoring unit 1f, similarly to the processing in step S202 shown in FIG. After the start of monitoring whether or not the process is performed, the process proceeds to step S403. In step S403, the central control unit 1a determines whether the wireless terminal 4 exists outside the service area. That is, the central control unit 1a determines that the determination result of step S403 is “N
In the case of "O", the process proceeds to step S404 to perform a connection / call process (see step S204).

Since the wireless terminal 4 is not present in the service area of the key telephone controller 1, the key telephone controller 1 sets the determination result of step S403 to "YES" and proceeds to step S405. In step S405,
The central control unit 1a refers to the first to fourth telephone numbers stored in the information storage unit 1g, and refers to telephone numbers other than the first telephone number that could not be connected (for example, the second telephone number). After reading the number from the information storage unit 1g, step S4
Proceed to 06.

In step S406, the central control unit 1a
Performs automatic transmission processing based on the second telephone number read from the information storage unit 1g in step S405. That is, after transmitting the second telephone number to the public network via the external line interface unit 1b and the public line 2b, the central control unit 1a proceeds to step S407. As a result, in the public network, connection processing to the wireless terminal 4 is performed via the public line 2c and the wireless device 5.

When the wireless terminal 4 is within the service area of the wireless device 5, the wireless terminal 4 is connected to a public network via a wireless line, and a response signal is sent from the public network to the public line. The signal is input to the external line interface unit 1b via 2b. On the other hand, when the wireless terminal 4 is outside the service area of the wireless device 5, the wireless terminal 4 is not connected to the public network via the wireless line, and thus no response signal is transmitted from the public network.

In step S407, the central control unit 1a
Determines whether or not the response confirming unit 1c has confirmed the above-described response signal. If the result of the determination is "YES", the flow advances to step S408 to transfer the call of the other terminal to the public via the public line 2b. Transfer to the network side. As a result, the terminal of the other party and the wireless terminal 4 are connected via the key telephone control device 1, the public network, the public line 2c, and the wireless device 5.

However, since the wireless terminal 4 is not present in the service area of the wireless device 5 in step S407, the response confirmation by the response confirming unit 1c is not performed, and therefore, the central control unit 1a determines As “NO”, the process proceeds to step S409.

In step S409, the central control unit 1a
Stops transmitting to the wireless terminal 4 via the public network and the wireless device 5, and then proceeds to step S410. In step S410, the central control unit 1a refers to the first to fourth telephone numbers stored in the information storage unit 1g, and the first and second telephone numbers that could not be connected together in step S403 and step S407. After reading a telephone number other than the telephone number (for example, a third telephone number) from the information storage unit 1g, the process proceeds to step S411.

In step S411, the central control unit 1a
Performs automatic transmission processing based on the third telephone number read from the information storage unit 1g in step S410. That is, the central control unit 1a sends the third telephone number to the public network via the external line interface unit 1b and the public line 2b, and then proceeds to step S412. As a result, in the public network, connection processing to the wireless terminal 4 is performed via the public line 2d and the wireless device 6.

Thus, the wireless terminal 4 is now connected to the wireless device 6
The wireless terminal 4 is connected to a public network via a wireless line, and a response signal is transmitted from the public network to the external line interface unit 1b via the public line 2b.

In step S412, the central control unit 1a
Determines whether the response confirmation unit 1c has confirmed the above-described response signal. In this case, the central control unit 1a sets the determination result to "YES", advances to step S413, and transfers the call of the terminal of the other party to the public network via the public line 2b. As a result, the other terminal and the wireless terminal 4 are connected via the key telephone control device 1, the public network, the public line 2d, and the wireless device 6. On the other hand, in step S412, when the determination result is “NO”, the central control unit 1a returns to step S402 and repeats the above-described operation.

As described above, according to the key telephone apparatus according to the second embodiment described above, since the transmission is automatically made via the radio apparatus 5 and the radio apparatus 6, the first embodiment is used. The probability that the wireless terminal 4 is busy is reduced as compared to the key telephone device according to the form, and
Further, the effect that the usability of the other party can be improved can be obtained.

[0039]

According to the present invention, when a call is transmitted from a partner terminal to the wireless terminal via the first communication path when the wireless terminal is outside the service area, the terminal of the partner terminal Is automatically transferred to the wireless terminal via the second communication path, so that the effect of improving the usability of the other party is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a key telephone device according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of the key telephone device according to the first embodiment.

FIG. 3 is a block diagram showing a configuration of a key telephone device according to the second embodiment.

FIG. 4 is a flowchart illustrating an operation of the key telephone device according to the second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 key telephone control device 1 a central control unit 1 b external line interface unit 1 c response confirmation unit 1 e wireless terminal interface unit 1 f status monitoring unit 4 wireless terminal 5 wireless device 6 wireless device

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04B ⁷ /24-7/26 H04M 1/00 H04M 1/24 H04M 1/58-1/62 H04M 1 / 66-1/78 H04Q 7/00-7/38

Claims (2)

(57) [Claims] 1. A wireless terminal to which a plurality of telephone numbers capable of receiving an incoming call from a terminal of the other party via the first or second communication path are assigned, and the wireless terminal exists within its own service area. When you are
Wireless terminal accommodating the wireless terminal via a wireless line
A housing means, a storage means for storing the predetermined telephone number for originating to the terminal via the second communication path, whether before Symbol wireless terminal exists in the service area monitoring means for monitoring, over the previous SL when the wireless terminal based on the monitoring result of the monitoring means is present in the service area, the wireless terminal via the first communication path from the terminal of the other party when a call is originated Te, and control means for transferring to the wireless terminal a call from the terminal of the other party on the basis of the telephone number stored in said storage means via said second communication path, before Symbol wireless terminal when an incoming via the second communication path was on, and a key telephone control unit for chromatic and response confirmation means for confirming the presence or absence of a response signal transmitted from the wireless terminal to the second communication path Yes <br/>, and the first Communication path, before the said button telephone controller
A communication path to the wireless terminal via the wireless line , wherein the second communication path is installed at a different location from the key telephone control device and the wireless terminal is within its service area. From the first or second wireless device that communicates with the wireless terminal via another wireless line ,
A communication path to the wireless terminal via another wireless line , wherein the storage means stores the first telephone number as the first telephone number;
Storing a telephone number for a general cordless terminal of the wireless terminal in the wireless device and a telephone number for a general cordless terminal of the wireless terminal in the second wireless device, wherein the control unit stores the telephone number stored in the storage unit. After sending any one of the numbers to the second communication path, if the response confirmation means does not confirm the response signal, the response confirmation means does not confirm the response signal, and sends to the second communication path based on the telephone number stored in the storage means. A key telephone apparatus characterized by repeating transmission of a telephone number. 2. The control unit according to claim 2, wherein when the response confirmation unit confirms the response signal, the control unit forwards a call from the terminal of the other party to the wireless terminal via the second communication path. The key telephone device according to claim 1.