JPH0946742A - Private exchange system provided with radio channel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such various services as originating and terminating calls between an independent cordless telephone set and an independent telephone set, etc., and a public cordless telephone and performing control to preferentially terminate the call from the public cordless telephone to the independent cordless telephone set or the control to connect the public cordless telephone to the other extension telephone set housed in a PBX when connection to the independent cordless telephone set is impossible. SOLUTION: A first radio connection device (CCPS 4) equivalent to the slave unit part of the public cordless telephone and a second radio connection device (PVCS 7) equivalent to the master unit of the independent cordless telephone are housed in a private branch exchange equipment (PBX 12) and the control for mutually connecting the CCPS 4 and the PVCS 7 and the control for mutually connecting a telephone line (a public line and a private line) 13 housed in the PBX 12 or the extension telephone set 14 and the CCPS 4 or the PVCS 7 are made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects a public line of a mobile phone to a private branch exchange facility, and connects a cordless telephone or an extension telephone or a telephone line accommodated in the private branch exchange facility to the public line through the private branch exchange facility. Regarding the private exchange system that was designed to connect.

[0002]

2. Description of the Related Art Conventionally, a cordless telephone has a system (hereinafter referred to as a public cordless telephone) for directly accessing a public wireless base station installed by a telecommunications carrier with a mobile telephone.
There is a system (hereinafter referred to as a self-employed cordless phone) in which a user installs a wireless device (a so-called base unit) that connects to a public line and accesses the base unit with a cordless telephone, and both systems are independent systems. Has become.

[0003]

According to the above-mentioned prior art, since the public cordless telephone and the private cordless telephone are independent systems, the public cordless telephone (referred to as a telephone for the public cordless telephone) is a public wireless telephone. When a call cannot be made because of being out of the wireless coverage area (a wireless coverage area) of the base station, for example, a private cordless telephone (a telephone for a private cordless telephone) is a radio of a public wireless base station. A self-employed cordless telephone cannot be connected to the public wireless base station even if it is in the coverage area.

Further, when the cordless telephone has functions for both public cordless telephones and private cordless telephones, one of the systems is communicating, for example, while the other cordless telephone is communicating, the other system is used. That is, if an incoming call is received from a public cordless telephone, it cannot be answered.

The present invention is proposed in order to solve the above-mentioned problems. In addition to accommodating a public cordless telephone and a self-employed cordless telephone in a private branch exchange facility to solve the above-mentioned inconvenience,
Obtain a private exchange system capable of various new services, such as enabling to make and receive calls from a telephone terminal housed in a private branch exchange facility or a telephone line to a public line via a public wireless base station. Make things an issue.

[0006]

In order to solve the above-mentioned problems, the present invention sets a wireless line between a cordless telephone and a first wireless connection unit for setting a wireless line with a public wireless base station. The second wireless connection means is accommodated in the private branch exchange equipment, and the connection between the cordless telephone and the public wireless base station is made possible by the exchange control of the private branch exchange equipment. Connection between an extension telephone (wired telephone) of the private branch exchange and the public radio base station, connection of the cordless telephone and a telephone line (public line, leased line, etc.) accommodated in the private branch exchange, the public radio The base station is connected to a telephone line (dedicated line) accommodated in the private branch exchange facility, the cordless telephone is connected to the extension telephone, and the like.

When an incoming call is received from a public wireless base station, the incoming call is preferentially connected to the cordless telephone, and when the cordless telephone is out of the communication range of the second wireless connection means, or When the cordless telephone is busy, the incoming call is connected to the extension telephone of the private branch exchange facility.

[0008]

The private branch exchange facility controls the connection between the first wireless connection means and the second wireless connection means, and the extension telephone or the telephone line (dedicated to the first wireless connection means and the private branch exchange facility) By controlling the connection between the second wireless connection means and the telephone line (public line or leased line, etc.) housed in the private branch exchange facility or the above extension telephone. The cordless telephone can be used for calls with various telephone lines, and incoming / outgoing calls to the public wireless base station can be made from the extension telephone of the private branch exchange facility. When it is not possible to connect an incoming call from a public wireless base station to the cordless phone due to reasons such as being in progress, various services such as connecting the incoming call to the above extension phone are provided. That.

The cordless telephone basically has only the function of a self-employed cordless telephone.
It is not necessary to have the functions of both a public cordless telephone and a private cordless telephone.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system configuration diagram of a private exchange system according to an embodiment of the present invention, and FIG. 2 is a block diagram of a main part device (first and second wireless connection devices) according to an embodiment of the present invention. Three
FIG. 3 is a block diagram of a main part of a private branch exchange facility according to an embodiment of the present invention.

The configuration of the system according to the embodiment of the present invention will be described with reference to FIG.

Reference numeral 1 denotes a public radio base station (hereinafter referred to as CCCS), which accommodates a public line 2 and has an antenna 3.
This CCCS1 is installed by a telecommunications carrier, and is a general mobile phone (the public cordless phone).
And public line 2 are connected by a wireless line (this CCCS1
As such, it is not provided in the private exchange system of the present invention. ).

Reference numeral 4 denotes a first wireless connection device (hereinafter referred to as CCPS), which corresponds to the first wireless connection means, and CCCS1
The wireless line 20 is set up with the CCCS 1 in cooperation with. The CCPS 4 basically has a connection control function in a mobile phone, and has an antenna 5 and a connection line 6 to a private branch exchange facility 12 described later.

A second wireless connection device (hereinafter referred to as PVCS) 7 corresponds to the second wireless connection means, and establishes a wireless line 21 with a cordless telephone 10 described later.
The PVCS 7 basically has the same functions as the master unit of a self-employed cordless telephone, and has an antenna 8 and a connection line 9 to a private branch exchange facility 12.

10 is a cordless telephone, PVCS
The wireless line 21 is set up with the PVCS 7 in cooperation with the PVCS 7. The cordless telephone 10 has the same function as a self-employed cordless telephone (the function as the public cordless telephone is not required), and the antenna 11 is used.
Having.

Reference numeral 12 is a private branch exchange facility (hereinafter referred to as PBX), which accommodates the CCPS 4 and PVCS 7, and also a telephone line 13 and an extension telephone 14 belonging to an outside line such as a private line or a public line, and various other terminals. In the present invention, the connection control shown in FIG. The PBX 12 naturally makes various connections such as mutual connection between extension telephones and connection between the extension telephone 14 and the telephone line 13. However, these connections are functions originally possessed by the PBX 12, and the control according to the present invention is There is no direct relationship.

The CCPS 4 and PVCS 7 have the same hardware configuration as shown in FIG. 2, but the signal processing method (by software) and electrical specifications are different from each other. That is, CCPS4 has functions and operations based on the public cordless telephone contract (hereinafter referred to as public protocol), and PVCS7 has the private cordless telephone contract (hereinafter referred to as private protocol).
It has functions and operations based on

Hereinafter, in FIG. 2, numbers outside the parentheses are CCs.
The code as PS4 is shown, and the number in () is PVCS.
The code | symbol as 7 is shown.

The configuration of the CCPS 4 (PVCS 7) will be described with reference to FIG. 2. 41 (71) is a wireless transmission / reception unit for transmitting / receiving a wireless signal to / from the antenna 5 (8), and 42 (7).
2) is a modulation / demodulation unit that modulates the transmission signal and demodulates the reception signal, 43 (73) is a channel codec unit that multiplexes the transmission signal, decodes the reception signal, and creates transmission / reception timing, and 44 (74) is Line interface unit for exchanging voice and data with the PBX 12, 4
5 (75) is a CPU that controls the entire CCPS 4 (PVCS 7).

The configuration of the PBX 12 will be described with reference to FIG. 3. Reference numeral 121 is a CPU for controlling the entire PBX, and 122 is a CPU.
Is a first wireless interface 123, a second wireless interface 124, an outside line interface 125, which will be described later.
Extension interface 126 and dial receiver 127
A switch unit (hereinafter, referred to as SW) for connecting between the above and the like under the control of the CPU 121, 123 is the CCPS 4
Is connected to the PBX 12, a first wireless interface 124 is for connecting the PVCS 7 to the PBX 12, and a second wireless interface 125 is for connecting a telephone line (external line such as a public line or a private line) 13 to the PBX 12. An outside line interface, 126 is an extension line interface for connecting the extension telephone set 14 to the PBX 12, and 127 is a dial receiver. Further, 128 is a control line between the CPU 121 and the first wireless interface 123 and the second wireless interface 124, and 129.
Is a control line between the external line interface 125 and the internal line interface 126 and the CPU 121, and 130 is a SW
A control line between 122 and the CPU 121, and 131 is a control line between the dial receiving unit 127 and the CPU 121.

In order to enable the cordless telephone 10 and the PVCS 7 to communicate with each other, it is necessary to perform position registration for determining whether or not the cordless telephone 10 is in the service area of the PVCS 7. This registration method includes a method of recording the identification code of the cordless telephone 10 in the PVCS 7 and a method of recording it in the PBX 12. In the following description, the case where the location registration is performed in the PBX 12 will be described as an example. .

When there are a plurality of PVCS 7 accommodated in the PBX 12, the PBX 12 is the cordless telephone 10.
Since the identification code of each of the PVCS 7 is recorded in correspondence with each PVCS 7, the cordless telephone 10 uses the plurality of PVCs.
Connection is possible regardless of the calling area of S7.

(1) Preferential incoming call connection control to a cordless telephone (first incoming call connection control) In the "first incoming call connection control" described here, an incoming call occurring on the public line 2 in FIG. 1 is cordless. Phone 1
0 is preferentially connected, and when this is not possible, the incoming call is connected to the extension telephone set 14.

Specifically, when the cordless telephone 10 is in a call when the incoming call generated on the public line 2 is preferentially connected to the cordless telephone 10, the cordless telephone 1
Extension telephone 14 immediately without displaying the incoming call to 0
And (when the cordless telephone 10 cannot be connected for any reason other than during a call), the cordless telephone 10 displays an incoming call during a call, and the cordless telephone 10 displays for a certain period of time. When the response monitoring is performed and the cordless telephone 10 responds to the incoming call display, the public line 2 and the cordless telephone 10 are connected, and when the cordless telephone 10 does not respond to the incoming call display within the above-mentioned fixed time, , There is a method of connecting the incoming call to the extension telephone set 14. When making an incoming call to the cordless telephone 10 during a call, the PBX1
In No. 2, the response time of the cordless telephone 10 to the incoming call may not be monitored, but in this case, when the cordless telephone 10 does not respond, the calling side of the public line 2 gives up the calling. Return to normal state.

Which of these methods should be used is PBX12.
Depending on the initial settings of, both equations will be described in the above order in the following order.

First, the connection operation will be described with reference to FIG.

When there is an incoming call from the public line 2 to the CCCS1, the CCCS1 detects this and sends an incoming signal according to the public protocol to the CCPS4 via the wireless line 20. The CCPS 4 receives the incoming signal and sends the received information of the incoming signal to the PBX 12 via the connection line 6.
Since the connection to the cordless telephone 10 is given priority, P
When the BX 12 detects the incoming signal reception information from the connection line 6, it first confirms that the cordless telephone 10 is in the PVCS 7 communication area and is not in a call. When this is confirmed, the connection line 6 and the connection line 9 are connected. Is connected by a connection path, and
The incoming signal reception information is sent to the PVCS 7 via the connection line 9.

When the PVCS 7 receives the incoming signal reception information, it sends an incoming signal according to the private protocol to the cordless telephone 10 via the wireless line 21, and thereby the cordless telephone 10 displays the incoming call.

Cordless telephone 10 displaying an incoming call
If you answer with a cordless telephone 10 from the wireless line 21
A response signal in accordance with a self-employed protocol is sent to the PVCS 7 via the, and the PVCS 7 receives the response signal to set a call path to the cordless telephone 10 via the wireless line 21, and to the PBX 12 to send the response signal. The reception information is transmitted, and the PBX 12 transmits the response signal reception information to CCPS.
Send to 4.

When the CCPS 4 receives the response signal reception information, it sends a response signal in accordance with the public protocol to the wireless line 20.
To CCCS1 via. The CCCS 1 receives the response signal, sets a call path to the CCPS 4 via the wireless line 20, and displays a response to the public line 2 to close the call line to the public line 2. As a result, the next call path "public line 2-CCCS1-
Wireless line 20-CCPS4-PBX12 connection path-P
VCS7-wireless line 21-cordless telephone 10 "(route 1) is completed, and a call is made between the cordless telephone 10 and the public line 2.

When the call ends and the cordless telephone 10 terminates the call, the cordless telephone 10 sends an end signal according to the self-employed protocol to the PVCS 7 via the wireless line 21, and the PVCS 7 receives the end signal. Then, the reception information is sent to the PBX 12, and the PBX 12 receives the end signal reception information, sends it to the CCPS 4, and opens the connection path.

When the CCPS 4 receives the above-mentioned termination signal reception information, it transmits the termination signal according to the public protocol to the CCCS 1 via the wireless line 20. The CCCS 1 receives the call end signal and releases the public line 2.

With the above operation, the (path 1) disappears, and the above-mentioned devices are restored and returned to the empty state.

When there is an incoming call to the public line 2, the connection is impossible because the cordless telephone 10 is out of the communication range of the PVCS 7, or when the cordless telephone 10 is in a call, the cordless telephone 10 is connected to the PBX 12. Since it is not possible to confirm the position or the vacancy, the above incoming call is immediately connected to the extension telephone set 14.

That is, when the PBX 12 receives the reception information of the incoming signal from the CCPS 4, the cordless telephone 10
Exists within the communication range of PVCS 7 or cannot be confirmed to be free, so that a predetermined extension telephone 14 is selected, CCPS 4 and extension telephone 14 are connected by a connection path, and An incoming signal is sent to the extension telephone 14, and the extension telephone 14 displays an incoming call.

If the extension telephone set 14 responds to the above incoming call,
The PBX 12 detects this and sends the response information to the CCPS 4 via the connection line 6. Upon receiving the response information, CCPS4 sends a response signal in accordance with the public protocol to CCCS1.
To CCCS1 and CCS1 receives C
A call path is set between the CPS 4 and a response display is displayed on the public line 2.

As a result, the next call path "Public line 2-
The CCCS1-radio line 20-CCPS4-PBX12 connection path-extension telephone 14 "(path 2) is completed, and a call is made between the extension telephone 14 and the public line 2.

When the telephone call ends and the extension telephone set 14 terminates the call, the PBX 12 detects this and outputs the termination information to the connection line 6.
Then, the signal is sent to CCPS4 and the connection path is opened.

When CCPS 4 receives the above-mentioned call-end information,
An end signal according to the public protocol is transmitted to the CCCS1, and upon receiving this, the CCCS1 releases the public line 2 and the (path 2) disappears, and the end of the call is completed.

As another method, when there is an incoming call to the public line 2, since the cordless telephone 10 is in a call, the incoming call is displayed on the cordless telephone 10, and the incoming call is received by the cordless telephone 10. It is also possible to monitor the response to the call for a certain period of time and connect the incoming call to the extension telephone 14 when the cordless telephone 10 does not make a response within the certain period of time.

That is, when the PBX 12 receives the reception information of the incoming signal from the CCPS 4, the cordless telephone 10
When the idle / busy state is confirmed and the busy state is detected, an instruction for displaying an incoming call during a call is sent to the PVCS 7 via the connection line 9 and a timer for monitoring the response of the cordless telephone 10 is started.

When the PVCS 7 receives the instruction for displaying the incoming call, the cordless telephone 10 is connected via the wireless line 21.
A call incoming signal according to the self-employed protocol is sent to the cordless telephone 10, and the cordless telephone 10 displays the call incoming.

When the cordless telephone 10 which has displayed the incoming call during call is terminated and the current incoming call is answered, the cordless telephone 10 wirelessly connects to the wireless line 2.
1, the response signal to the incoming call according to the self-employed protocol is transmitted, the PVCS 7 receives the response signal and sends the reception information of the response signal to the incoming call to the PBX 12, and the PBX 12 receives the response signal. Then, the cordless telephone 10 releases the connection path through which the call was being made, connects the connection line 6 and the connection line 9 by the connection path, and sends the response signal reception information to the CCPS 4.

The subsequent operation is the same as the operation when the cordless telephone 10 is idle.

After the display of the incoming call during the call in the cordless telephone 10, the cordless telephone 10 does not respond to the incoming call even if the time of the response monitoring timer of the cordless telephone 10 in the PBX 12 elapses, and the above-mentioned incoming call is received. When the PBX 12 continues to operate, the PBX 12 cancels the instruction for displaying the incoming call during call to the PVCS 7 due to the time limit of the response monitoring timer of the cordless telephone 10, and the extension telephone 1 which has been determined.
4 is selected, the CCPS 4 and the extension telephone set 14 are connected by a connection path, and an incoming signal is sent to the extension telephone set 14, whereby the incoming call display is displayed on the extension telephone set 14.

By canceling the instruction to display the incoming call during the call from the PBX 12 to the PVCS 7, the PVCS 7 is connected to the wireless line 2
Since the sending of the incoming call signal which has been sent to the cordless telephone 10 via 1 is stopped, the display of the incoming call on the cordless telephone 10 disappears.

The subsequent operation is the same as the operation when the incoming call cannot be connected to the cordless telephone 10 and the incoming call is immediately connected to the extension telephone 14.

Also, the cordless telephone 1 described here
When the cordless telephone 10 is not in the service area of the PVCS 7 in the method of displaying the incoming call during call to 0, the incoming call to the public line 2 is immediately connected to the extension telephone 14.

That is, there is an incoming call on the public line 2 and the PB
When X12 receives the incoming signal reception information from CCPS4,
The PBX first confirms whether or not the location of the cordless telephone 10 is registered. If the location is not registered, the incoming call is immediately connected to the extension telephone 14 by the control. If the location is registered, the location of the cordless telephone 10 is registered. In response, the incoming connection control described here is performed.

Next, CCPS in the above incoming connection control
4, details of operations of the PVCS 7 and the PBX 12 will be described with reference to FIGS.

The CCPS 4 receives the incoming signal from the CCCS 1 at the wireless transmission / reception section 41 via the antenna 5. This incoming signal is an incoming signal according to the public protocol as described above.

The incoming signal received by the wireless transmission / reception unit 41 is demodulated by the modulation / demodulation unit 42, the demodulated signal is decoded by the channel codec unit 43, and this is detected by the CPU 45. Upon detection of the incoming signal information, the CPU 45 sends a control signal for incoming processing (the incoming signal reception information, hereinafter referred to as incoming control signal) to the connection line 6 via the line interface 44.

In the PBX 12 to which the incoming call control signal is sent via the connection line 6, the PBX 12 receives the incoming call control signal via the control line 128, and the CPU 121 detects the incoming call control signal via the control line 128. , PV
Whether or not the cordless telephone 10 is present within the CS7 communication range, and if so, whether or not the cordless telephone 10 is in a call is confirmed by the position registration data recorded in the PBX 12. As a result, when it is confirmed that the cordless telephone 10 is present in the PVCS 7 communication area and that the cordless telephone 10 is not in a call, the CPU 121 switches the SW.
122 is controlled via the control line 130 to connect the first wireless interface 123 and the second wireless interface 124 (connection path), and send an incoming call control signal to the second wireless interface 124 via the control line 128, This incoming control signal is sent to the PVCS 7 via the connection line 9.

When the incoming call control signal is sent via the connection line 9, the PVCS 7 receives it at the line interface section 74, and the CPU 75 causes the line interface section 7 to receive it.
The incoming code control signal is detected from 4 to control the channel codec unit 73, and the incoming code control signal is multiplexed and coded in accordance with the private protocol to be an incoming signal.

This incoming signal is then modulated by the modulation / demodulation unit 72, further converted into a wireless signal by the wireless transmission / reception unit 71 and transmitted to the wireless line 21 via the antenna 8, and the cordless telephone 10 receives this incoming signal.

When the cordless telephone 10 receives the incoming signal, the cordless telephone 10 displays an incoming call.
If you answer with a cordless telephone 10 from the wireless line 21
A response signal according to the self-employed protocol is transmitted to the PVCS 7 via the.

The PVCS 7 receives the response signal via the antenna 8 at the wireless transmission / reception unit 71, and the CCPS 4 transmits the CC
The CPU 75 receives the response signal by the same operation as the control in the CCPS 4 when the incoming signal is received from the CS 1, and controls the line interface unit 74 to control the control signal for the response processing (the response signal reception information, Hereinafter, referred to as a response control signal) via the connection line 9 to the PBX.
Send to 12.

The PBX 12 receives the response control signal from the connection line 9 at the second wireless interface 124.

The CPU 121 of the PBX 12 uses the control line 12
The response control signal is detected via 8 and this is sent to the control line 1
The data is transferred to the first wireless interface 123 via 28 and then sent to the CCPS 4 via the connection line 6.

The CCPS 4 to which the response control signal is sent via the connection line 6 sends this to the line interface unit 4
4, and the CPU 45 detects the response control signal. Upon detecting the response control signal, the CPU 45 controls the channel codec unit 43 and the modulation / demodulation unit 42 by the same operation as the control in the PVCS 7 when the PVCS 7 sends an incoming signal to the cordless telephone 10, and the wireless transmission / reception unit 41. A response signal according to the public protocol is sent to the wireless line 20 via the antenna 5 and the CC.
CS1 receives this response signal.

When CCCS1 receives the response signal,
A response process is performed to the public line 2, whereby the call path between the public line 2 and the cordless telephone 10 shown in the above (Route 1), that is, CCPS4, PBX12.
And the PVCS 7 in detail, the next call path "public line 2-CCCS1-antenna 3-radio line 20"
-Antenna 5-CCPS4 (radio transmission / reception unit 41-modulation / demodulation unit 42-channel codec unit 43-line interface unit 44) -connection line 6-PBX12 (first radio interface unit 123-SW122 (connection path) -second
Wireless interface unit 124) -connection line 9-PVCS
7 (line interface unit 74-channel codec unit 73-modulation / demodulation unit 72-radio transceiver 71) -antenna 8-radio line 21-antenna 11-cordless telephone 10 "(path 3) is completed.

When the call ends and the call ends at the cordless telephone 10, the call end signal is transmitted from the cordless telephone 10 to the PVCS 7 via the wireless line 21. The call end signal is sequentially sent to the PVCS 7, PBX 12, CCPS 4 and CCCS 1 via the same route as the response signal sent from the cordless telephone 10, and is transmitted in a signal form suitable for each device, like the response signal. It

That is, the cordless telephone 10 and PVCS 7
Is a multiplexed signal according to a self-employed protocol, and is a control signal for the end processing between PVCS 7, PBX 12 and CCPS 4 (the above-mentioned end signal reception information, hereinafter the end control signal). ), And also CCP
Between S4 and CCCS1, it is a multiplexed signal according to the public protocol.

At the time of transmitting the above-mentioned termination signal, the CCC
In S1, the public line 2 is opened by receiving the call end signal. Further, in the PBX 12, the CPU 121 receives the above-mentioned call-end control signal, and thus the SW is switched via the control line 130.
122 for controlling the first wireless interface 123
The connection (connection path) between the second wireless interface 124 and the second wireless interface 124 is opened.

As a result, the (route 3) disappears, and all devices (CCCS1, CCPS4, PB) related to the call are
X12, PVCS7) returns to an empty state.

Next, the details of the operation when the incoming call from the public line 2 cannot be connected to the cordless telephone 10 and the incoming call is immediately connected to the extension telephone 14 will be described.

Whether there is an incoming call to the public line 2, the above-mentioned operation proceeds, the CPU 121 of the PBX 12 detects an incoming call control signal, and whether or not the cordless telephone 10 is present within the communication range of the PVCS 7, and if there is, the cordless telephone. 1
In the operation of checking whether 0 is vacant, the cordless telephone 10 does not exist in the communication range (no location registration), or the telephone is busy (location registered but location-registered cordless telephone). 10 is busy), the CPU 121 confirms that the predetermined extension telephone set 14 is empty, and then the extension telephone set 14 concerned.
The extension interface 126 connected to the first wireless interface 123 and the extension interface 126 is selected by controlling the SW 122 via the control line 130.
To connect (connecting path) with the extension interface 126
Is controlled via a control line 129 to send an incoming signal from the extension interface 126 to the extension telephone set 14.

When the extension telephone set 14 responds by ringing an incoming signal, the extension interface 126 detects the response and sends the response information to the CPU 121 via the control line 129. The CPU 121 receives the response information and sends it to the first wireless interface 123 via the control line 128, and the first wireless interface 123 sends a response control signal to the connection line 6.

The response control signal sent to the connection line 6 is C
The CCPS 4 receives the response signal according to the public protocol to the CCCS 1 via the wireless line 20 in the same manner as the operation when the cordless telephone 10 responds, and transmits the response signal to the CCCS 1 via the wireless line 20. It becomes the state of responding to 2.

It is also possible to connect an incoming call from CCCS1 to an extension group composed of a plurality of extension telephones. In this case, the CPU 121 connects the incoming call to a vacant telephone among the extension telephones in the extension group. This is convenient because the probability of occurrence of a situation in which an incoming call cannot be connected to either the cordless telephone 10 or the extension telephone 14 is reduced.

With the above operation, the next call path is completed, and the extension telephone set 14 can talk with the public line 2. "Public line 2-CCCS 1-Antenna 3-Wireless line 20-Antenna 5-CCPS4 (Wireless transceiver 41-Modem 42
-Channel codec unit 43-Line interface unit 44) -Connection line 6-PBX 12 (first wireless interface 123-SW122 (connection path) -extension interface 126) -Extension telephone 14 "(route 4).

When the call ends and the extension telephone 14 terminates the call, the extension interface 126 detects the termination and sends the termination information to the CPU 121 through the control line 129. The CPU 121 receives the call-end information and controls the control line 128.
The call-end control signal is sent to the first wireless interface 123 via the control line 130 and the SW 122 is controlled via the control line 130 to open the connection path between the first wireless interface 123 and the extension interface 126.

Further, the first wireless interface 123
When receiving the above-mentioned termination control signal, the CCPS4
, And the call end signal according to the public protocol is sent from CCPS4 to CCCS1 in the same manner as the operation at the time of call termination in the cordless telephone 10. All returned devices will be empty.

Next, when there is an incoming call on the public line 2, since the cordless telephone 10 is in a call, the cordless telephone 10 displays the incoming call, and the cordless telephone 1
In the case of 0, if the incoming call is not answered within a certain time, the operation of connecting the incoming call to the extension telephone set 14 will be described in detail.

There is an incoming call to the public line 2, the above-mentioned operation progresses, the CPU 121 of the PBX 12 detects an incoming call control signal, and the cordless telephone 10 is in a call in the operation of confirming whether or not the cordless telephone 10 is idle. When the CPU 121 detects this, the CPU 121 sends a control signal (hereinafter, called incoming call control signal) for instructing an incoming call incoming display to the connection line 9 through the control line 128 and the second wireless interface 124. A timer (not shown; hereinafter referred to as a timer) that is set and monitors the response of the cordless telephone 10 to the incoming call is activated.

The PVCS 7 receives the incoming call control signal sent to the connection line 9 by the CPU 75 through the line interface section 74, and the CPU 75 receives the incoming call signal and controls the channel codec section 73. The above-mentioned incoming call control signal is multi-coded according to a private protocol to be an incoming call signal.

This incoming call signal is sent to the cordless telephone 10 by the same operation as that of the incoming signal, and the incoming call is displayed on the cordless telephone 10.

When the cordless telephone 10 responds to the incoming call, the cordless telephone 10 sends a response signal to the PVCS 7 via the wireless line 21 to the PVCS 7 according to the private protocol.

The PVCS 7 operates the response signal to the incoming call during the call by the same operation as the response signal to the incoming call to the CPU.
75 and receives it via connection line 9
Send to 2.

The PBX 12 sends a response control signal to the second incoming call from the connection line 9 to the incoming call.
4 and the control line 128, and the CPU 121 receives it.

The CPU 121 receives the response control signal for the incoming call, resets the timer, controls the SW 122 via the control line 130 to open the connection path of the cordless telephone 10 that is currently talking, and then First wireless interface 123 and second wireless interface 124
And are connected by a connection path, and a response control signal is sent to the connection line 6 via the control line 128 and the first wireless interface 123.

The operation up to the end of the call is the same as the above-mentioned operation when the cordless telephone 10 responds to the incoming call.

Next, after the incoming call is displayed on the cordless telephone 10, even if the time limit of the timer provided in the CPU 121 of the PBX 12 is exceeded, the cordless telephone 1
In No. 0, the operation when no response is made to the incoming call will be described.

After the in-call incoming call is displayed on the cordless telephone 10, the PBX 12 is not responded by the cordless telephone 10 to the in-call incoming call.
If the timer in the CPU 121 of the
121 is the control line 1 due to the timer timeout
The in-call incoming call control signal transmitted to the connection line 9 via the wireless communication interface 28 and the second wireless interface 124 is canceled.

The CPU 75 of the PVCS 7 which has received the call waiting control signal from the connection line 9 disappears from the call waiting control signal and the CPU 75 causes the cordless telephone 10 to operate.
Stop the incoming call signal that was being sent to.

In the cordless telephone 10, the above P
When the incoming call signal transmitted from the CPU 75 of the VCS 7 stops, the incoming call display disappears.

In the PBX 12, the CPU 121 controls the SW 122 via the control line 130 to connect the first wireless interface 123 and the extension interface 126 by the connection path, and controls the extension interface 126 via the control line 129. An incoming signal is sent from the extension interface 126 to the extension telephone set 14.

Thereafter, the operation from the response of the extension telephone 14 to the end of the call is the same as the operation when the incoming call is not connected to the cordless telephone 10 and the incoming call is immediately connected to the extension telephone 14.

(2) Call destination-specified incoming call connection control by caller (second incoming call connection control) In the "second incoming call connection control" described here, the caller of the public line 2 in FIG. Either the cordless telephone 10, the extension telephone 14 or the telephone line 13 (however, it is limited to a dedicated line) can be designated as the destination of the call. That is, the PBX 12 or any of the connections is performed by the selection signal sent by the dialing operation of the calling party.

It is assumed that the destination device to which the leased line 13 is connected is the PBX (when the device is a telephone, the leased line 13 can be regarded as an extension line, and the connection control in this case). Is the same as the connection control for the extension telephone set 14).

First, the connection method will be described with reference to FIG.

There is an incoming call from the public line 2 and the incoming call is received by the CCPS 4 via the CCCS 1, and the CCPS 4 receives the incoming call from the connection line 6
It is the same as the first incoming connection control until the PBX 12 receives the incoming signal reception information and receives it.

The PBX 12 automatically responds to the CCPS 4 because the other party receiving the incoming signal reception information is the CCPS 4, and thereby the PBX 12 sends the response information to the connection line 6, whereby the first As in the case of the incoming call connection control, a call line is set between CCPS4 and CCCS1, and a call route between the public line 2 and the PBX 12 is completed.

Next, the PBX 12 sends a dial tone to the CCPS 4 (this dial tone is a signal unique to the PBX 12 that is different from the dial tone of the public line network so that it can be identified that it is sent from the PBX). .
The dial tone is sent to the public line 2 via the communication path between the public line 2 and the PBX 12 described above, and prompts the caller to perform a dial operation for selecting a destination.

When the caller sends a selection signal of the destination by dial operation, the selection signal is sent to the PBX 12 via the call path, and the PBX 12 receives and analyzes the selection signal and selects the selection signal. For example, if is a signal for selecting the cordless telephone 10, the connection line 6 and the connection line 9 are connected by a connection path, and an instruction signal for calling the cordless telephone 10 is sent to the PVCS 7 via the connection line 9.

Upon receipt of the instruction signal, the PVCS 7 sends a calling signal according to the self-employed protocol to the cordless telephone 10 via the wireless line 21, whereby the cordless telephone 10 displays an incoming call.

The cordless telephone 1 is displayed by the display of the incoming call.
If the response is 0, the response signal according to the self-employed protocol is transmitted from the cordless telephone 10 to the PVCS via the wireless line 21.
7, the PVCS 7 receives the response signal, sets a wireless communication path with the cordless telephone 10, and sends the response signal reception information to the PBX 12 through the connection line 9, The same call path as in 1) is completed and the caller and the cordless telephone 10 enter into a call.

If the selection signal received by the PBX 12 from the caller is a signal for selecting the extension telephone set 14, the PBX 12 connects the connection line 6 and the extension telephone set 14 by the connection path and the extension telephone set 14 Send a call signal to.

As described above, the incoming call is displayed on the extension telephone set 14. When the extension telephone set 14 responds to the incoming call, the same call route as the above (route 2) is completed, and the caller and the extension telephone set 1
Enter into a call with 4.

When the selection signal is a signal for selecting the dedicated line 13, the PBX 12 connects the connection line 6 and the dedicated line 13 by a connection path and controls the call to the dedicated line 13. . As a result, the next call path "public line 2-CCCS1-radio line 20-CCPS4-P"
BX12 connection path-dedicated line 13 "(path 5) is completed.

Further, since the PBX 12 controls the call to the private line 13, a dial tone is sent from the partner PBX to the private line 13, and the dial tone of the public line 2 is transmitted to the private line 13 by the above (route 5). Will be sent to.

When the caller hears the dial tone and further dials the telephone number of the called party (the extension telephone number accommodated in the other party's PBX), the dial signal sent to the public line 2 is transmitted. The (route 5) is transmitted in the opposite direction to the dial tone to reach the destination PBX, and predetermined control is performed in the destination PBX, and the caller of the public line 2 and the destination PBX in the destination PBX are controlled. The caller is connected and the call between them becomes possible.

In the above connection control, the call ends,
When the call-end operation is performed on the cordless telephone 10 and the extension telephone 14, the call is ended under the same control as the call-ending in the first incoming call connection control. Also, when the private line 13 and the public line 2 are connected, if the call termination operation is performed on the extension telephone of the other party, P
The BX 12 detects this and sends the call-end information to the connection line 6, whereby the call is ended under the same control as when the call-end information is sent to the connection line 6 in the first incoming call connection control.

Next, the operation of each unit in the above second incoming connection control will be described in detail with reference to FIGS.

When an incoming call occurs on the public line 2, the first
CC in the same manner as the operation at the time of incoming call in incoming connection control of
The PS 4 operates, and an incoming call control signal is sent from the CCPS 4 to the PBX 12 via the connection line 6.

In the PBX 12, the first radio interface 123 receives the incoming call control signal and sends it to the control line 1.
It sends to CPU121 via 28. The CPU 121 sends the incoming call control signal from the first wireless interface 123, so that the incoming call that is actually occurring is CC
When it is determined that the incoming call is from PS4, a response instruction signal is sent to the first wireless interface 123 via the control line 128 to automatically respond to the incoming call.

When the first wireless interface 123 receives the response instruction signal, the first wireless interface 123 sends a response control signal to the CCPS 4 via the connection line 6, whereby the CCPS 4 receives the response control signal in the first incoming connection control. It operates in the same way as when
Set up a call line via. That is, the first of PBX12
A call path is completed between the wireless interface 123 and the public line 2.

The CPU 121 of the PBX 12 sends the response instruction signal to the first wireless interface 123 and controls the SW 122 via the control line 130.
The first wireless interface 123 and the dial receiving unit 127 are connected (connection path), and a dial tone sending instruction signal is sent to the dial receiving unit 127 via the control line 131. The dial receiving unit 127 receives the instruction signal and sends a dial tone, and the dial tone is emitted via the connection path of the SW 122 and the call path completed between the first wireless interface 123 and the public line 2. Sent to the caller.

When the caller hears the dial tone and performs a dial operation for selecting the intended destination, a signal for selecting the destination is sent to the public line 2, and the selection signal is the dial tone. Transmitted in the opposite direction, PBX12
It is received by the dial receiving unit 127.

The dial receiving section 127 receives the selection signal and sends the destination information indicated by the selection signal to the CPU 121 via the control line 131.

When the CPU 121 receives the destination information, it controls the SW 122 via the control line 130, and the first wireless interface 123 and the dial receiving unit 127 are controlled.
While opening the connection path with the
For example, assuming that the information indicates the cordless telephone 10, the SW 122 is controlled via the control line 130, and the first
A connection path between the wireless interface 123 and the second wireless interface 124 is connected, and a control line 128 is further connected.
An incoming call instruction signal to the cordless telephone 10 is sent to the second wireless interface 124 via.

When the second wireless interface 124 receives the incoming call instruction signal, it sends an incoming call control signal to the PVCS 7 via the connection line 9, whereby the PVCS 7 receives the incoming call control signal in the first incoming call connection control. In the same manner as the operation at the time of sending, an incoming signal according to the self-employed protocol is sent to the cordless telephone 10 through the wireless circuit 21,
As a result, the incoming call is displayed on the cordless telephone 10.

The cordless telephone 1 is displayed by the above-mentioned incoming call display.
If you respond with 0, the cordless telephone 10 to PVCS7
A response signal based on a self-employed protocol is sent to the PVCS 7, and the PVCS 7 sends a response control signal to the PBX 1 via the connection line 9 in the same manner as the operation of the first incoming connection control.
Send to 2.

The PBX 12 receives the response control signal from the connection line 9 at the second wireless interface 124 and sends it to the CPU 121 via the control line 128. CPU1
21 knows the response of the cordless telephone 10 from this,
The second wireless interface 124 via the control line 128
Is set to a call state, the same call route as the above (route 3) is completed, and the cordless telephone 10 and the public line 2 enter into a call.

Further, when the destination selected by the caller by the dial operation is the extension telephone 14, that is, in the above operation, the destination selection signal received by the dial receiving section 127 selects the extension telephone 14. If the signal is a signal, the CPU 121 receives the callee information from the dial receiving unit 127, controls the SW 122 via the control line 130 as described above, and controls the first wireless interface 123 and the dial receiving unit. After opening the connection path with 127, the first wireless interface 123 and the extension telephone 14
In addition to closing the connection path with the control line 129, the extension interface 126 is controlled via the control line 129, and a call signal is sent from the extension interface 126 to the extension telephone set 14.

Since the incoming call is displayed, the extension telephone 14
The extension interface 126 detects this and sends the response information to the CPU 121 through the control line 129.

The CPU 121 receives the response information,
The extension interface 126 is set to the call state via the control line 129, the same call path as the above (Route 4) is completed, and the extension telephone 14 and the public line 2 (caller) can talk.

If the call destination selected by the caller by the dial operation is the leased line 13, that is, the call destination selection signal received by the dial receiving section 127 of the PBX 12 selects the leased line 13 in the above operation. If the signal indicates that the dial reception unit 127 is to be received, the CPU 121 receives the destination information from the dial reception unit 127, opens the connection path via the SW 122, and sets the dial reception unit 127 to the first position.
It disconnects from the wireless interface 123 and closes a new connection path. As a result, the next call path "public line 2-CCCS1-antenna 3-radio line 20-antenna 5-CCPS4 (radio transceiver 41-modulator-demodulator 42"
-Channel codec section 43-Line interface section 44) -Connecting line 6-PBX 12 (first wireless interface 123-SW122 (connecting path) -external line interface 125) -dedicated line 13 "(path 6) is completed.

Further, the CPU 121 controls the outside line interface 125 via the control line 129 and controls the calling to the dedicated line 13. As a result, calling control is performed on the partner PBX to which the private line 13 is connected, and a dial tone is sent from the partner PBX to the private line 13, and this dial tone is sent to the public line 2 by the above (route 6). Sent to the caller.

When the calling party listens to the dial tone from the destination PBX and dials the number of the intended destination (extension PBX of the destination PBX), the dial signal sent to the public line 2 by the dial. Is above (route 6)
Is transmitted in the opposite direction to the dial tone and reaches the destination PBX. As a result, in the destination PBX, the private line 13 is connected to the extension telephone set designated by the caller by the dialing operation, and the call from the caller and the extension telephone set is entered after receiving the response from the extension telephone set.

When the call is terminated and the call-end operation is performed on the cordless telephone 10, the extension telephone 14 or the leased line 13 side (extension telephone of the other party's PBX), the operation is the call termination in the first incoming call connection control. The operation is similar to.

(3) Preferential outside line outgoing connection control to the public line of the public wireless base station (first outgoing connection control) In the "first outgoing connection control" described here, the cordless telephone 10 in FIG. The outside line call from (from outside) (call to the public line) is preferentially connected to the public line 2 of the CCCS 1, and when this is impossible, the call is connected to the telephone line (public line) 13 of the PBX 12. That is, PBX12
When the cordless telephone 10 makes a call,
Connection is given priority, and when this is not possible, connection is made.

First, the connection method will be described with reference to FIG.

When the cordless telephone 10 makes a call, the cordless telephone 10 sends a calling signal in accordance with the self-employed protocol to the PVCS 7 via the wireless line 21, and the PVC
In S7, the calling signal is received, and the reception information of the calling signal is sent to the PBX 12 via the connection line 9.

When the PBX 12 detects the calling signal reception information, the connection to the public line 2 is prioritized. Therefore, it is confirmed that the CCPS 4 is not busy first, and the CCPS 4 is activated when the confirmation is obtained. And the CCPS4 and P
It is connected to the VCS 7 through a connection path.

Upon receiving the activation from the PBX 12, the CCPS 4 transmits a calling signal according to the public protocol to the CCCS 1 via the wireless line 20. The CCCS 1 receives the calling signal and activates the public line 2.

When the public line 2 is activated from CCCS1, it returns a dial tone to CCCS1.

The dial tone is CCCS1, radio line 20, CCPS4, PBX12 (connection path), PVCS.
7. It is sent to the cordless telephone 10 via the wireless line 21.

The cordless telephone 10 knows that it is connected to the public line 2 by the dial tone and dials the telephone number of the called party. This allows the cordless telephone 1
The dial signal corresponding to the called number sent from 0 is sent to the public line 2 through a route opposite to the above dial tone.

When the transmission of the dial signal is completed, the called party is called and the called party answers, the public line 2
From CCCS1 to CCCS1,
When this is received, the cordless telephone 10 and the public line 2 are brought into a call state through the same call route as the (route 1) explained in the above-mentioned incoming call connection control.

The operation at the end of the call is the same as the operation when the call is received from the public line 2.

When a call is made from the cordless telephone 10, CC
If PS4 is already used for another call, the relevant C
When the availability of the CPS 4 cannot be confirmed, the PBX 12 closes the connection path and connects the cordless telephone 10 to the public line 1.
3 to make a call to the public line 13.

As a result, the cordless telephone 10 can make a call to the public line 13.

The above control is the same as that of the conventional PBX provided with the cordless system, except that the CCPS 4 is vacant and the busy confirmation operation is performed before the connection path is closed.

Next, the operation of each part associated with the above outgoing connection control will be described in detail with reference to FIGS. 2 and 3.

A calling signal from the cordless telephone 10 in accordance with the self-employed protocol is sent to the antenna 8 via the wireless line 21.
The calling signal received by the wireless transmission unit 71 of the PVCS 7 and received by the wireless transmission / reception signal is demodulated by the modulation / demodulation unit 72, further decoded by the channel codec unit 73, and detected by the CPU 75. The CPU 75 detects the calling signal and sends a control signal (calling signal reception information, hereinafter referred to as a calling control signal) for calling processing to the PBX 12 through the line interface 74 and the connection line 9. To send.

The PBX 12 sends the call control signal to the CPU via the second wireless interface 124 and the control line 128.
It is detected at 121. When the CPU 121 detects the call control signal, it confirms that the first wireless interface 123 is not busy, and then the first wireless interface 12
3 is activated via the control line 128, and the SW 122 is controlled via the control line 130 to close the connection path.
The wireless interface 123 and the second wireless interface 124 are connected.

The first wireless interface 123 activated by the CPU 121 sends a call control signal to the CCPS 4 via the connection path 6.

When the call control signal is sent to the CCPS 4, the CPU 45 receives the call control signal via the line interface unit 44. The CPU 45 receives the call control signal, controls the channel codec unit 43, modulates the call control signal by the modulator / demodulator 42 as a call signal in which the call control signal is multi-coded according to a public protocol, and transmits and receives wirelessly. The part 41 sends it to the wireless line 20 via the antenna 5 and sends it to the CCCS 1.

When CCCS1 receives the calling signal,
The public line 2 is activated, whereby a dial tone is sent from the public line 2 to the CCCS1, and the CCCS1 sends the dial tone to the CCPS4 according to the public protocol.

As described above, the dial tone is CCP.
When sent to S4, the CCPS 4 receives the CCPS 4 via the antenna 5 in the wireless transmission / reception unit 41, demodulates it in the modulation / demodulation unit 42, decodes it in the channel codec unit 43, and connects it to the line interface unit 44 via the connection line 6. PBX
Send to 12.

The PBX 12 sends the dial tone to the first wireless interface 123, SW 122 (connection path),
And the second wireless interface 124 to send to the connection path 9.

The PVCS 7 receives the dial tone sent to the connection path 9 at the line interface section 74,
Further, the channel codec unit 73 multiplex-encodes according to a self-employed protocol, the modulation / demodulation unit 72 modulates the data, and then the wireless transmission / reception unit 71 sends the wireless line 21 through the antenna 8.

The cordless telephone 10 receives the dial tone from the wireless line 21. Cordless telephone 10
The operator (calling party) hears the dial tone, knows that his / her cordless telephone 10 is connected to the public line 2, and dials the telephone number of the called party. As a result, a dial signal corresponding to the telephone number of the called party is transmitted from the cordless telephone 10 and is transmitted to the public line 2 through a route opposite to the above dial tone.

When the transmission of the dial signal is completed, the called party is called and the called party responds, the operation of the incoming connection control between the called party and the cordless telephone 10 has been explained. The same communication path as in 3) will be completed and communication will be possible.

The operation at the time of call termination is the same as the operation at the time of call termination described in FIG. 2 and FIG. 3 for the case of receiving a call from the public line 2.

When a call is made from the cordless telephone 10, CC
If PS4 is already busy, P
When the BX 12 receives a call control signal from the connection line 9, CC
When the availability of PS4 cannot be confirmed, the CPU 121 of the PBX 12 controls the SW 122 to close the connection path,
The second wireless interface 124 is connected to the outside line interface 125. This allows the cordless telephone 1
0 is connected to the telephone line 13. That is, the cordless telephone 10 can make a call to the public line 13 housed in the PBX 12 by wire. As described above, this control is the same as the conventional PBX transmission control including the cordless system.

(4) Line-designated external line outgoing connection control by cordless telephone (second outgoing connection control) In the "second outgoing connection control" described here, the external line (public line) from the cordless telephone 10 in FIG. CCCS the line used at this time when calling to
The public line 2 of 1 or the public line 13 of the PBX 12 is designated and performed.

That is, the PBX 12 is selectively connected to or by the selection signal sent by the dial operation of the cordless telephone 10.

When a call is made from the cordless telephone 10, the PVCS 7 is used in the same manner as when the first call origination connection control is made.
Sends a call control signal to the PBX 12.

When the PBX 12 receives the call control signal, it controls the call and sends a dial tone to the connection line 9. The dial tone is sent to the cordless telephone 10 via the PVCS 7 and handled by the cordless telephone 10. The caller is prompted to select (designate) a line.

After listening to the dial tone, the operator of the cordless telephone 10 performs a dial operation for selecting either the public line 2 or 13.

As a result, a selection signal for selecting a line is sent from the cordless telephone 10, and the selection signal is sent to the PBX 12 via the wireless line 21 and PVCS 7.

The PBX 12 receives and analyzes the selection signal, and if the selection signal is a signal for selecting the public line 2 on the CCPS 4 side, activates the CCPS 4,
Moreover, the CCPS 4 and PVCS 7 are connected by a connection path.

After the CCPS 4 is started up from the PBX 12, the call is sent to the public line 2 by the same control as the first call connection control, and the cordless telephone 10 and the public line 2 are sent.
It becomes possible to talk to the called party.

If the selection signal received by the PBX 12 is a signal for selecting the public line 13 on the PBX 12 side, the PBX 12 performs call control to the public line 13 and connects the PVCS 7 and the public line 13 to each other. Are connected by a connecting path. As a result, the cordless telephone 10 is connected to the public line 13, and thereafter, the cordless telephone 10 can make a call to the public line 13 similarly to the control in the conventional PBX including the cordless system.

Next, the operation of each part associated with the above-mentioned line-designated outside line outgoing connection control will be described in detail with reference to FIGS. 2 and 3.

When a call is made from the cordless telephone 10, the PVCS 7 is sent in the same manner as when the first outgoing call connection control is made.
Sends a call control signal to the PBX 12.

The PBX 12 sends the call control signal to the CPU via the second wireless interface 124 and the control line 128.
It is detected at 121. When the CPU 121 detects the call control signal, it controls the SW 122 via the control line 130,
Second wireless interface 124 and dial receiver 12
7 (connection path), and sends a dial tone sending instruction signal to the dial receiving unit 127 via the control line 131.

The dial receiving section 127 receives the instruction signal and sends a dial tone, and the dial tone is "S".
Connection path of W122-second wireless interface 124
-Connection line 9-PVCS7 (line interface unit 74
-Channel codec unit 73-Modem unit 72-Wireless transceiver 71) -Antenna 8-Wireless line 21-Antenna 1
1-cordless telephone 10 ”and is sent to the cordless telephone 10.

When the cordless telephone 10 hears the dial tone and sends a selection signal for selecting the desired outside line, the selection signal is transmitted in the reverse direction through the dial tone path, and the PBX 12 receives the dial. It is received by the unit 127.

The dial receiving section 127 receives the selection signal and outputs the outside line information of the destination indicated by the selection signal to the control line 13.
1 to the CPU 121.

When the CPU 121 receives the destination outside line information, it controls the SW 122 via the control line 130, and the second wireless interface 124 and the dial receiving unit 12 are controlled.
When the connection destination line 7 is opened and the destination external line information is, for example, information indicating the public line 2, the SW 122 is controlled via the control line 130, and the first wireless interface 123 and the second wireless interface are controlled. 1
The connection path between the first wireless interface 123 and the first wireless interface 123 is activated via the control line 128, and the call control signal is sent.

The first wireless interface 123 activated by the CPU 121 sends the CCPS4 through the connection path 6.
Send a call control signal to.

After that, the public line 2 is activated, the dial tone from the public line 2 is received by the cordless telephone 10, and the operation from the transmission of the dial signal for selecting the called party to the termination of the call is performed. The operation is the same as in the case of the first outgoing connection control.

When the outside line information of the destination received by the CPU 121 is the information indicating the public line 13, the PBX 12 is SW.
By controlling 122 to open the connection path and close the connection path, the cordless telephone 10 and the public line 13 are connected, and thereafter, the conventional PBX equipped with the cordless system.
The cordless telephone 10 can make a call to the public line 13 in the same manner as the control in 1.

(5) Originating connection control by extension telephone or dedicated line (third originating connection control) In the "third originating connection control" described here, in FIG. When making a call, the public line 2 is designated as an outgoing line to establish a connection.

That is, the PBX 12 is connected to or by a selection signal sent from the extension telephone set 14 or the dedicated line 13.

When a call is made from the extension telephone set 14 or the leased line 13 and the extension telephone set 14 or the leased line 13 sends out a selection signal for selecting the public line 2, the PBX 12 makes the conventional PB
Similar to the control in X, the connection path or connection is established, and the CCPS 4 is activated via the connection line 6.

After the CCPS 4 is activated, the public line 2 is activated by the same control as the first outgoing connection control, and the dial tone is returned from the public line 2, so that the dial tone of the PBX 12 is transmitted. It is sent to the extension telephone 14 or the dedicated line 13 via the connection path or.

The extension telephone set 14 or the leased line 13 knows that it is connected to the public line 2 by the dial tone and dials the telephone number of the called party. As a result, the dial signal corresponding to the called number sent from the extension telephone set 14 or the leased line 13 is sent to the public line 2 through the route opposite to the dial tone.

When the transmission of the dial signal is completed and an incoming signal is transmitted to the called party and the called party responds to this, the public line 2 to the PBX 12 are controlled by the same control as the first outgoing connection control. The extension telephone 14 or the leased line 13 becomes in a call state with the public line 2 via the call route of.

When the call ends and the call ends at the extension telephone 14 or the leased line 13, the PBX 12 detects this and PBX
12 sends an end signal to CCPS 4 via connection line 6 and opens the connection path or.

The releasing operation after the call termination processing in CCPS4 is the same as that in the case of the first incoming call connection control.

Next, the above-mentioned extension telephone set 14 or dedicated line 13
The outgoing connection control by means of will be described with reference to FIG.

The CCPS4 relating to the third outgoing connection control
The operation of (FIG. 2) is the same as the case of the first outgoing connection control. That is, in this connection, operations such as calling, dial relaying, and ending call of CCPS4 are the same as those in the case of the above-mentioned first outgoing connection control, and the difference is the caller in PBX 12 and its connection path. The difference is not directly related to the operation of CCPS4.

When a call is made from the extension telephone set 14 or the dedicated line 13, the PBX 12 detects this by the extension interface 126 or the outside line interface 125, and the extension interface 126 or the outside line interface 125 sends the call detection information to the CPU 121 via the control line 129. Send to.

The CPU 121 receives the call detection information, connects the extension interface 126 or the outside interface 125 and the dial receiving section 127 with a connection path or, and controls the dial receiving section 127 via the control line 131. , Dial tone from the dial receiving unit 127 through the connection path or the extension telephone 14
Alternatively, it is sent to the dedicated line 13.

The operator of the extension telephone set 14 or the leased line 13 is
By knowing that the PBX 12 is ready for dial reception by the dial tone, a selection signal for selecting the public line 2 is transmitted. The selection signal is sent in the opposite direction on the dial tone sending path, and the dial receiving unit 127
Will be received at. The dial receiving unit 127 sends the received selection signal information to the CPU 121 via the control line 131.

When the CPU 121 receives the selection signal information and knows that it is a call to the public line 2, it opens the connection path between the extension interface 126 or the outside line interface 125 and the dial receiving section 127, and the extension interface 126. Or outside line interface 125
The first wireless interface 123 and the first wireless interface 123 are connected by a connection path or, and a start signal is sent to the first wireless interface 123 via the control line 128.

When the first wireless interface 123 receives the activation signal and sends a call control signal to the CCPS 4 via the connection line 6, the public line 2 is transmitted from the CCCS 1 by the CCCS 1 as in the operation in the first call connection control. It is activated and a dial tone is returned from the public line 2.

The route in the PBX 12 is "first wireless interface 123-SW122 (connection route or)-
The extension line interface 126 or the outside line interface 125 ″.

Thereafter, the transmission of the telephone number of the called party from the extension telephone set 14 or the leased line 13 and the communication with the called party are carried out through the above route.

The call termination is an operation of call termination in the case where the public line 2 and the extension telephone 14 are connected in the first incoming call connection control or the public line 2 and the private line 13 are connected in the second incoming call connection control. It is the same.

In addition to the various connection operations described in (1) to (5) above, the cordless telephone 10 to the extension telephone 14 are connected.
To the cordless telephone 10 from the extension telephone 14 or the telephone line 13, but these operations are similar to those in the case of the PBX having the conventional cordless system.

[0186]

The private branch exchange accommodates the CCPS 4 corresponding to the slave station of the public cordless telephone and the PVCS 7 which is the master of the private cordless telephone, and the CCPS 4 and the PV
Control for connecting to CS7, CCPS4 and extension telephone 14 or telephone line (dedicated line) 13 accommodated in the private branch exchange facility
By controlling the connection between the PVCS 7 and the extension telephone 14 or the telephone line (public line or private line) 13, the cordless telephone 10 can be used for communication with various telephone lines or extension telephones. In the case where it is possible to share the call, and it is possible to make and receive calls to the public cordless telephone line 2 from the extension telephone 14 of the private branch exchange facility, and when it is set to preferentially receive the cordless telephone 10 from the public cordless telephone line 2, When the cordless telephone 10 receives an incoming call from the public cordless telephone line 2 during a call, the cordless telephone 10 displays the incoming call and enables the response to the incoming call, or the cordless telephone 10 is out of the wireless communication area. When it is not possible to connect to the incoming call due to the reason, various services such as connecting to the above-mentioned extension telephone 14 It can be provided.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram of CCPS4 and PVCS7.

FIG. 3 is a block diagram of a main part of the PBX 12.

[Explanation of symbols]

1 ... Public wireless base station (CCCS) 2 ... Public line 3, 5, 8, 11 ... Antenna 4 ... First wireless connection device (CCPS) 6, 9 ... Connection line 7 ... Second wireless connection device (PVCS) 10 ... Cordless telephone 12 ... Private branch exchange (PBX) 13 ... Telephone line 14 ... Extension telephone 41, 71 ... Radio transmission / reception section 42, 72 ... Modulation / demodulation section 43, 73 ... Channel codec section 44, 74 ... Line interface section 45, 75, 121 ... CPU 122 ... switch section (SW) 123 ... first wireless interface 124 ... second wireless interface 125 ... external line interface 126 ... extension interface 127 ... dial receiving section 128, 129, 130, 131 ... control line

Claims (8)

[Claims] 1. A first wireless connection unit for setting a wireless line with a public wireless base station accommodating a public line, and a second wireless connection unit for setting a wireless line with a cordless telephone. It is housed in a private branch exchange facility, and the private branch exchange facility has a first function of connecting the first wireless connection means and the second wireless connection means, and the first function causes the first wireless connection means to connect to the first wireless connection means. A private exchange system having a wireless line adapted to connect the public wireless base station and the cordless telephone via the wireless connecting means and the second wireless connecting means. 2. The private exchange system according to claim 1, wherein the private branch exchange facility further has a second function of connecting the first wireless connection means to an extension telephone set housed in the private branch exchange facility by wire. A private exchange system having a wireless line configured to connect the public wireless base station and the extension telephone via the first wireless connection unit by the second function. 3. The private exchange system according to claim 1, wherein the private branch exchange facility connects the second wireless connection means and a telephone line housed in the exchange facility by wire.
The private exchange system further having the function of, and having a wireless line capable of connecting the cordless telephone and the telephone line via the second wireless connection means by the third function. 4. The private exchange system according to claim 1, wherein the private branch exchange facility connects the second wireless connection means and an extension telephone wire-connected to the private branch exchange facility. 4. A private exchange system further comprising the function 4 and a wireless line capable of connecting the cordless telephone and the extension telephone via the second wireless connection means by the fourth function. 5. The private exchange system according to any one of claims 1 to 4, wherein the private branch exchange facility connects the first wireless connection means with a telephone line wired to the private branch exchange facility. A private exchange system further having the function 5 and having a wireless line capable of connecting the public wireless base station and the telephone line through the first wireless connecting means by the fifth function. 6. The private exchange system according to claim 2, wherein connection control by the first function of the private branch exchange facility is prioritized with respect to an incoming call from a public wireless base station. When the cordless telephone is busy, whether the incoming call is displayed on the cordless telephone in response to the above-mentioned incoming call and whether the current call on the cordless telephone is continued or whether the incoming call is answered. A private exchange system having a wireless circuit adapted to be selected. 7. The private exchange system according to claim 2, wherein connection control by the first function of the private branch exchange facility is preferentially performed for an incoming call from a public wireless base station. When the cordless telephone is busy and / or when the cordless telephone is not within the communication range of the second wireless connection means, the private line having a wireless line adapted to connect the incoming call to the extension telephone of the private branch exchange facility. Exchange system. 8. The cordless telephone private exchange system according to claim 2, wherein when the cordless telephone receives an incoming call from a public wireless base station while the telephone is busy, the cordless telephone has a predetermined time. While the call is displayed during the call, the cordless telephone can respond to the incoming call during the fixed time, the cordless telephone does not answer the incoming call within the fixed time, and when the fixed time elapses. When the above incoming call continues,
A private exchange system having a wireless line adapted to connect the incoming call to an extension telephone of a private branch exchange facility.