JPH07250366A - Simple cordless telephone system - Google Patents

Abstract

(57) [Abstract] [Purpose] With respect to a cordless telephone system for in-house communication, it is an object of the present invention to enable connection control of a cordless telephone by an exchange that does not have a dedicated function for cordless telephones. [Structure] An exchange 1 and a plurality of base station devices 10 are connected in multiple ways by a plurality of lines 2, and a terminal 6 on the exchange side and a cordless telephone 3 in a wireless zone 5 of the base station device are connected by a line and a radio channel 4. A cordless telephone system, in which a line connection circuit 11 having the same interface as the exchange accommodation terminal 7, a wireless connection circuit 12 corresponding to a wireless channel, and a line connection circuit and a wireless connection circuit are selectively connected in a base station device. Connection means 13, a base station operation specifying means 14 for specifying to the control means a different connection processing start time for each base station device, and a base station operation specifying means 14 when a connection request is made from a terminal or a cordless telephone The connection processing is started by the above, and the control means 15 for performing signal processing and connection between the line connection circuit and the wireless connection circuit is provided.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a cordless telephone system for corporate communications. In recent years, the number of users such as car phones and mobile phones that use mobile communication networks for public communication has been rapidly increasing, but cordless phones that are easy to move are also widely used in companies. There is.

Since a cordless telephone system provided in a corporate communication network has a small transmission / reception power and a narrow wireless zone, a multi-zone type cordless telephone system having a plurality of wireless zones is often provided in a wide premises.

Connections to cordless telephones are made via a private branch exchange, but the functions required for connection control are usually composed mainly of software. However, in the multi-zone cordless telephone system, since the location of the cordless telephone is switched and the wireless zone is switched when the cordless telephone is moved, the software for controlling the connection of the cordless telephone is complicated and large-scale.

Since a private branch exchange conventionally used in a corporate communication network does not have the connection control function of the cordless telephone as described above, when a cordless telephone is accommodated for connection, a new cordless telephone is newly added. It is necessary to add a dedicated function. As a method therefor, there are a method of using a private branch exchange having a built-in connection control function of a cordless telephone and a method of adding a dedicated connection device for a cordless telephone system to the outside of a conventional private branch exchange. In either case, the large-scale and complicated software described above is incorporated, which makes it considerably expensive. Especially, when a private branch exchange with a control function for a cordless telephone is adopted,
Since the existing private branch exchanges are often renewed due to the remaining useful life, the economic burden on the enterprise becomes large.

Therefore, there is a demand for the appearance of a simple cordless telephone system capable of controlling the connection of a multi-zone cordless telephone system with an existing private branch exchange which is not supposed to be connected to a cordless telephone.

[0006]

2. Description of the Related Art FIG. 9 is a system configuration diagram of a prior art, FIG.
FIG. 1 is a block diagram of a base station device of the related art. FIG. 9 shows the configuration of a multi-zone cordless telephone system in a corporate communication network. (1) in the figure shows an example of using a private branch exchange with a built-in connection control function of the multi-zone cordless telephone system. (2) shows an example in which a general private branch exchange that does not have the connection control function of the cordless telephone system is used as the private branch exchange, and a connection device dedicated to the cordless telephone system is used outside.

The private branch exchange 51 shown in FIG. 9 (1) is a private branch exchange (hereinafter referred to as a dedicated PBX) having a built-in cordless telephone control function 51a for controlling connection of a cordless telephone in addition to the functions of a general private branch exchange. is there. On the other hand, the private branch exchange 71 shown in FIG. 9 (2) is a conventional private branch exchange (hereinafter, referred to as general PBX) that does not have the connection control function of the cordless telephone, but the dedicated connection device 72 added to the outside is cordless. It has a built-in cordless telephone connection control function 72a that controls the connection of telephones.
It has the same function as the dedicated PBX 51 by combining. Except for this difference in configuration, FIG.
Since the functional operations of (1) and (2) are the same,
Only (1) of will be explained.

In FIG. 9 (1), three wireless zones (Z _{1 to} Z ₃ ) 55 are provided for cordless telephones, and each wireless zone 55 has a base station device (wireless channel 54). An example in which BS _{1 to} BS ₃ ) 60 are installed is shown. Although the dedicated PBX 51 and each base station device 60 are connected by a line 52, the figure shows an example in which one line is installed for each base station device 60 corresponding to the wireless channel 54. .

If the dedicated PBX 51 is an analog exchange, the line 52 comprises a pair of analog communication lines and two control lines for transmission and reception, for a total of 4 lines, and if the dedicated PBX 51 is a digital exchange, 2 lines are provided.
Various configurations such as a line (alternate transmission / reception) or a four-line (transmission / reception separate) digital line are used.

FIG. 10 shows the configuration of the base station device 60.
Reference numeral 61 is a line connection circuit (LD), 62 is a baseband wireless connection circuit (BB. Hereafter referred to as a wireless connection circuit), 63 is a wireless transmission / reception circuit (RF. Hereafter referred to as a wireless circuit), and 64 is a microprocessor unit. (ΜP) (hereinafter referred to as a processor). The line connection circuit 61 is an interface unit with the line 52, and has an interface similar to the terminal 57 (hereinafter referred to as the accommodating terminal) accommodated in the dedicated PBX 51, but it is also clear from the configuration of the line 52 described above. like,
It often has an interface corresponding to a terminal accommodated such as a key telephone device, a multi-function telephone or a digital telephone.

The connection operation will be described below with reference to FIGS. 9 and 10, but the plurality of lines 53, the base station device 60 and the wireless zone 55 will be described.
Are individually referred to, they are referred to as a line L ₁ , a base station device BS ₁ , a radio zone Z _{1 and the} like by using the reference numerals shown in the figure.

In FIG. 9, a cordless telephone 53 is connected.
The connection request to make is from a subscriber (not shown) of the public communication network.
If it is done via the subscriber exchange 59, the private PBX 51
From the terminal 57 and other cordless telephones 53
However, the dedicated PBX51 is a connection destination
-Dress phone 53 (PS₁And the number)
And called cordless telephone PS₁Wireless zone where is located
Check 55. The location of the cordless telephone 53 is
Since it is registered in the dedicated PBX51 by location registration,
The cordless telephone control function 51a of the dedicated PBX 51 is the called code.
Dress phone PS ₁Check the wireless zone 55 in which
(Because the technology of location registration is known,
(Omitted for clarity).

When it is confirmed that the cordless telephone PS ₁ is present in the wireless zone Z ₁ , for example, the dedicated PBX 51 connects the line L ₁ to the base station device BS ₁ in the wireless zone Z ₁ .
To capture the number of the cordless telephone PS ₁ , etc.
A connection request is made to the base station device 60 (this connection is performed by a known technique, so a detailed description will be omitted).

When the processor 65 of the base station device 60 receives the number of the called cordless telephone PS ₁ via the line connection circuit 61, it sends a signal for calling the cordless telephone PS ₁ to the wireless channel 54 via the wireless circuit 63. Wireless zone Z ₁
When the cordless telephone PS ₁ located inside responds to this call, a call is started with the caller connected to the line L ₁ via the wireless circuit 63, the wireless connection circuit 62 and the line connection circuit 61.

[0015] If the connection request is made from the cordless telephone set PS ₁ includes a like calling signal and the destination telephone number via a wireless channel 54 of radio zone 55 (and Z ₁₎ of the cordless telephone PS ₁ is present connection request is sent to the base station apparatus BS _1, it makes an outbound connection from the line L ₁ by the processor 64 of the base station apparatus BS ₁ via the wireless circuit 63 controls the line connection circuit 61 receives the connection request. Dedicated PB
X51 is connected to a subscriber accommodation device 57 and the public communication network connection partner by known techniques When receiving the connection request from the line L ₁ (not shown).

When the cordless telephone PS ₁ moves from the wireless zone Z ₁ to the wireless zone Z ₂ during a call, the cordless telephone 53 performs position registration automatically or manually. This position registration is transmitted from the base station device BS ₁ in the wireless zone Z ₂ to the dedicated PBX 51, but the dedicated PBX
Upon receiving this position registration, the cordless telephone control function 51a in the 51 transmits / receives control information to / from the base station device BS ₁ and the base station device BS ₂ while transmitting the control information to the base station device BS ₁ that has been using the communication line. The line L ₁ connected is switched to the line L ₂ connected to the base station device BS ₂ .

As described above, in the conventional multi-zone cordless telephone system in the corporate communication network, the connection control function dedicated to the cordless telephone is provided to the private branch exchange or the dedicated connecting device, and the position of the cordless telephone is confirmed to connect. In addition, when the wireless zone changes during a call, the line is switched to continue the call.

[0018]

Therefore, in a conventional multi-zone cordless telephone system for an intra-company communication network, a private branch exchange or a dedicated connection device includes functions such as position confirmation of a cordless telephone and zone switching during a call. A connection control function dedicated to a cordless telephone is required, but since this function is mainly large-scale and complicated software, there is a drawback that a private branch exchange or a dedicated connection device incorporating this function becomes extremely expensive. In addition, if a private branch exchange with a built-in function is adopted, it will be renewed even if the existing private branch exchange has a useful life, which will cause a considerable financial burden on the company, and the cordless telephone system. The result is hindering the introduction of.

It is an object of the present invention to enable connection control of a cordless telephone set by an exchange that does not have a dedicated cordless telephone set function.

[0020]

1 and 2 are basic configuration diagrams of the present invention. In the figure, 10 is a plurality of base station devices having one or a plurality of wireless channels 4, 1 is an exchange, 2 is a connection between the exchange 1 and a plurality of base station devices 10, and is connected to a plurality of base station devices 10 in multiple ways. A plurality of lines, 3 is a cordless telephone, 4 is a wireless channel, 5 is a wireless zone forming a wireless connection range of each base station device 1, 6 is a terminal connected to the exchange 1, and 7 is a terminal accommodated in the exchange 1. , 8 are a plurality of service areas each including one or a plurality of wireless zones 5.

Reference numerals 11 to 15 are provided in each base station apparatus 10. Reference numeral 11 is a plurality of line connection circuits connected to each line 2 and having the same interface as the accommodation terminal 7 of the exchange 1.
Is one or more wireless connection circuits connected to each wireless channel 4, 13 is connection means for selectively connecting the plurality of line connection circuits 11 and one or more wireless connection circuits 12, and 14 is control means 15
It is a base station operation designating means for designating a different connection processing start time for each preset base station device 10 to the corresponding control means 15 when further activated.

Reference numeral 15 activates the base station operation designating means 14 when a connection request is received from the terminal 6 or the cordless telephone 3 via the line 2 or the wireless channel 4, and then the connection designated by the base station operation designating means 14 is executed. The connection processing is started at the processing start time, the signal transmission / reception processing of the line 2 and the wireless channel 4, and the control for connecting the line connection circuit 11 and the wireless connection circuit 12 corresponding to the connected line 2 and wireless channel 4 by the connection means 13 It is a control means for performing.

Reference numerals 21 and 22 are provided in the exchange 1. Reference numeral 21 indicates the absence or non-response of the accommodating terminal 7 or the cordless telephone 3 connected to the base station device 10 in the predetermined service area 8 via the line 2. If it is, another accommodation terminal 7 or another service area 8 which is semi-fixedly determined
The fixed call transfer processing means for transferring an incoming call to the line 2 to the base station device 10 of the reference numeral 22 is designated when a call transfer request is made in advance from the accommodation terminal 7 or the cordless telephone 3 to be connected. It is a variable incoming call transfer processing means for transferring an incoming call to the line 2 to the base station device 10 in another accommodation terminal 7 or another service area 8.

[0024]

The terminal 6 in FIG. 1 indicates a terminal connected to the exchange 1 via a terminal exchange (not shown) or a calling or called terminal connected to the cordless telephone in the accommodation terminal 7 of the exchange 1. However, when this terminal 6 connects to the exchange 1 and makes a connection request to the cordless telephone 3, the exchange 1 that receives this request captures an empty line 2 from a plurality of lines 2 and sends it to the base station device 10. A connection request is sent to the device. As shown in FIG. 1, since the plurality of lines 2 are connected to the plurality of base station devices 10 in multiple ways, all base station devices 10 simultaneously receive the connection request sent by the exchange 1 to the line 2.

Upon receiving the connection request, the control means 15 of each base station device 10 activates the base station operation designating means 14. When the base station operation designating means 14 is activated, it counts time, and when it reaches a predetermined time, it notifies the control means 15 of the connection processing start time. Since the connection processing start time is set to a different value for each base station device 10, the control means 15 of the plurality of base station devices 10 start the connection operation with a time difference.

Therefore, even if the called cordless telephone 3 exists at a point across a plurality of wireless zones 5, the control means 15 is called by the wireless channel 4 of the base station device 10 which first started the connection processing. When the called cordless telephone 3 responds, the control means 15 causes the wireless connection circuit 12 corresponding to the wireless channel 4 used at that time and the line connection circuit 11 corresponding to the line 2 which received the call to pass through the connection means 13. To connect. As a result, the called cordless telephone 3 becomes the calling terminal 6
You can make a call with.

In the case of the above connection, the exchange 1 can connect to the called cordless telephone 3 without checking the wireless zone 5 in which the cordless telephone 3 of the connection destination is located. In this case, since the connection processing start time of each base station device 10 is different, even if the called cordless telephone 3 exists at a point across a plurality of wireless zones 5, the plurality of base station devices 10 are connected at the same time. There is no.

Further, when a call is made from the cordless telephone 3 existing at a point across a plurality of wireless zones 5,
Corresponding plural base station devices 10 simultaneously detect the calling, but in this case also, the base station device 1 which first started the connection process by the designation of the base station operation designating means 15 performs the connection,
A plurality of base station devices 1 do not call the line 2 at the same time.

In the configuration of FIG. 1, each of the plurality of lines 2 is made to correspond to the plurality of cordless telephones 3 in a one-to-one relationship, and the exchange 1 and the base station device 10 connect the cordless telephone 3 to the cordless telephone. It is possible to use the corresponding line 2 (configuration of claim 2).

In this structure, the exchange 1 receives the connection request to the called cordless telephone 3 and, through the line 2 corresponding to the called cordless telephone 3, the base station device.
The control means 15 in the base station device 10 connects to the corresponding cordless telephone 3 from the line 2 for which the connection request is made.
And call the cordless telephone 3 via the wireless channel 4. Also in this case, since the line 2 is connected in multiple ways, the cordless telephone 3 can be connected in any wireless zone 5. Also, base station operation specifying means
Due to the action of 14, a plurality of base station devices 10 cannot be simultaneously connected to the called cordless telephone 3.

When a call is made from the cordless telephone 3, the base station device 10 identifies the calling cordless telephone 3, and selects the line 2 corresponding to the cordless telephone 3 to establish a connection.

As described above, in this configuration, the exchange 1 can be treated as if the cordless telephone 3 is directly connected to each line 2, like the line to which the fixed terminal such as the accommodation terminal 7 is connected.

In FIG. 2, a plurality of service areas 8 each including one or a plurality of wireless zones 5 are provided, and each cordless telephone 3 defines a service area for making outgoing / incoming call connections. When the exchange 1 requests a connection to the cordless telephone 3, the cordless telephone 3
Connection is made via the line 2 connected to the base station device 10 in the service area (hereinafter referred to as the home area) 8 defined in 1. However, if the connection cannot be established, the fixed call transfer processing means 21 Is connected to a transfer destination which is semi-fixed in advance, for example, the accommodating terminal 7 which is a fixed terminal, or to the called cordless telephone 3 via the line 2 to the base station device 10 in another service area 8. Connect (Claim 3)
Function of). Therefore, an incoming call to the cordless telephone 3 is connected to a predetermined transfer destination even when the cordless telephone 3 leaves the home area.

Further, in the system configuration of FIG. 2, when each of the plurality of lines 2 is made to correspond to the plurality of cordless telephones 1 to 1, each cordless telephone 3 makes an arbitrary incoming call when leaving the home area. It is possible to designate transfer to a line 2 other than the accommodating terminal 7 or the line 2 dedicated to itself (the function of claim 4).

In this case, the exchange 1 is connected to the cordless telephone 3
When there is an incoming call to the exchange 1, the exchange 1 confirms whether or not the call transfer request is made from the cordless telephone,
When the call transfer request is made, the variable call transfer processing means 22 transfers the call to the designated transfer destination, for example, the accommodation terminal 7 which is a fixed terminal or another line 2. In the latter case, the connection is made not to the called cordless telephone 3 but to the cordless telephone 3 corresponding to the line 2 designated as the transfer destination.

As described above, in FIG. 1, even if the cordless telephone 3 does not register its own location in the exchange 2, the exchange can connect to the cordless telephone 3 in the same manner as a connection to a general accommodation terminal. it can. Since the fixed call transfer processing means 21 and the variable call transfer processing means 22 in FIG. 2 also process the call transfer between the general accommodation terminals 7, the same function as the call transfer between the general accommodation terminals 7 is used in FIG. Thus, the call transfer of the cordless telephone is being performed among the plurality of service areas 8. As is apparent from the above, neither of the configurations shown in FIGS. 1 and 2 requires the exchange 1 to have the connection control function dedicated to the cordless telephone. That is, according to FIG. 1 and FIG.
It becomes possible to construct a simple cordless telephone system by using a conventional exchange that does not have a function dedicated to the cordless telephone.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 3 and 4 are system block diagrams of an embodiment of the present invention, FIG. 5 is a block diagram of a base station apparatus of an embodiment of the present invention, and FIGS. 6 to 8 are operation sequence diagrams of an embodiment of the present invention.

Throughout the drawings, the same reference numerals denote the same objects, 1 is a private branch exchange (PBX), and 10 is a base station device (B).
S), 2 is a plurality of lines (L) connecting the private branch exchange 1 and the base station device 10, 3 is a cordless telephone (PS), 4 is a wireless channel, 5 is a wireless zone (Z), and 6 is an outgoing / incoming connection. Is a terminal connected to the exchange 1 (for example, a subscriber terminal of the public communication network or a terminal accommodated in the exchange 1), 7 is an accommodation terminal of the exchange 1, and 8 is a service area (A).

Reference numerals 11 to 17 denote respective parts constituting the base station device 10,
11 is a line connection circuit (LD), 12 is a wireless connection circuit (B)
B) and 13 are line matrix circuits, 14 is a base station operation designating circuit (BS-SW), 15 is a processor (μP), 16 is a tone ringer circuit (TR), and 17 is a radio circuit (RF).
Reference numeral 21 is a call transfer processing unit provided in the private branch exchange 1.

In the above description, the private branch exchange 1 is an embodiment of the exchange 1 shown in FIGS. 1 and 2. Similarly, the line matrix circuit 3 is the connecting means 3, and the base station operation designating circuit 14 is the base station operation designating means 14. The processor 15 is an embodiment of the control means 15, and the call transfer processor 21 is an embodiment of the call transfer processing means. Further, the reference numerals in the parentheses described above are the reference numerals described in FIGS. 3 to 5, but in the description, the reference numerals in the parentheses are used when individually indicating a plurality of lines, circuits, etc. A code (a code described in FIGS. 3 to 5) in which a number for identifying each line and circuit is suffixed is used.

FIG. 3 shows three base station devices 10 (BS _{1 to} BS
₃ ) is provided, and the three wireless zones 5 (Z _{1 to} Z ₃ ) formed by the base station devices BS _{1 to} BS ₃ partially overlap each other. In the following, the embodiment of the present invention will be described by exemplifying a case where a call origination / termination connection is made to a cordless telephone 3 (PS ₁ ) existing at a point where the wireless zone Z ₂ and the wireless zone Z ₃ in FIG. 3 overlap. An example will be described in detail.

First, when a call is made from the terminal 6 such as a subscriber telephone of the public communication network or the accommodation terminal 7 of the private branch exchange 1 to the cordless telephone PS _{1 of} FIG.
The terminal 6 is used as a calling terminal) will be described with reference to FIGS. 3, 5 and 6.

The cordless telephones 3 connected by the private branch exchange 1 form one group, and a telephone number corresponding to the extension number of the accommodation terminal 7 for the group (hereinafter, referred to as "group number").
Cordless representative number). Therefore, the terminal 6 and the accommodation terminal 7 of the private branch exchange 1 dial this cordless representative number when making a call to the cordless telephone PS ₁ .

When receiving the cordless representative number from the calling terminal 6, the private branch exchange 1 starts the connection, but as is clear from the above, the private branch exchange 1 has identified the number of the called cordless telephone PS _{1 at} the start of the connection. Absent. In the present invention, a cordless phone 3 for not perform "location registration" for notifying its own location relative to the PBX 1, PBX 1 even know located in which radio zone 5 cordless telephone PS ₁ is Absent.

On the other hand, the line 2 in FIG.
However, the _three base station devices BS _{1 to} BS ₃ all start operating regardless of which line 2 is activated. The line 2 has the same property as the line connected to the accommodation terminal 7 of the private branch exchange 1, but the configuration of the accommodation terminal 7 differs depending on whether the private branch exchange 1 is an analog exchange or a digital exchange, and a single telephone, a key telephone, a multifunction telephone. The number of connected lines and the transmission method of signals differ depending on the type of terminal. Therefore, the line 2 in FIG. 3 may have various configurations, but in the following description, a line and a signal for a single analog telephone, that is, a pair (2 lines) like the most general subscriber line will be used. Description will be made on the premise of a line through which information is transmitted.

Next, the line-corresponding portion of the base station device 10 to which the line 2 is connected will be described with reference to FIG. FIG. 5 shows an example of the configuration of the base station device 10 of the present invention.
FIG. 5 shows an example in which four lines L _{1 to} L ₄ are provided as the line 2. Each line 2 is a line connection circuit
Further, tone ringer circuits (TR _{1 to} TR ₄ ) 16 are connected to the respective lines 2 in correspondence with the respective line connecting circuits 11. The line connection circuit 11 and the tone ringer circuit 16 have a configuration adapted to the nature of the line, but as described above, in the case of a two-wire line for analog single telephones, the line connection circuit 11 is connected or A loop is formed with respect to the private branch exchange 1 in the call state, and the call line is connected to the wireless line side via the line matrix circuit 13.

Returning to the explanation of the connection operation to the cordless telephone PS ₁ on the premise of such a line configuration. When the private branch exchange 1 receives the cordless representative number, it captures a vacant line 2 from the plurality of lines 2 without identifying the called cordless telephone PS ₁ and selecting the base station devices BS _{1 to} BS ₃ . A call signal is transmitted to this line 2 as if a single telephone was connected.

Now, one of the lines 2 from the private branch exchange 1,
For example, when a ringing signal is transmitted to the line L ₁ , the ringer receiving circuit in the tone ringer circuit TR ₁ shown in FIG. 5 (the detailed circuit is not shown because it is constructed by a known technique) receives it and arrives at the processor 15. The call is notified (double lines in FIG. 6 indicate control lines in the base station device 10). When the processor 15 identifies an incoming call, it sends a predetermined tone (hereinafter referred to as a second dial tone, which may be a talkie announcement instead of the tone) requesting the tone ringer circuit 16 to send the number of the called cordless telephone 3. Instruct them to do so.

Since this operation is simultaneously performed by all the base station devices 10 to which the line 2 is connected, in this example, the three base station devices BS _{1 to} BS ₃ send the second dial tone to the line L ₁ . However, if one base station device 10 that sends the second dial tone or talkie announcement is previously determined, there is no possibility that a plurality of tones or talkie announcements will be sent with some deviation.

The terminal 6 that has heard the second dial tone presses the called cordless telephone P using a push button (not shown).
When dialing the S ₁ number, the PB signal is transmitted to all base station devices B.
The signal is received by the line connection circuit 11 (or the tone ringer circuit TR ₁ ) of S _{1 to} BS ₃ . Cordless phone P received
When the S ₁ number is identified by the processor 15, the processor
15 starts the connection process for the cordless telephone 3.
Although the start timing of this connection processing differs depending on the base station device 10, this will be described later, and here it will be explained that the connection processing is started immediately.

The base station apparatus 10 of FIG. 5 shows an example in which radio-related circuits corresponding to two radio channels 4 (not shown in FIG. 5) are provided. The wireless connection circuit 12 is a baseband (audio band) circuit, and audio information from this circuit is transmitted from the wireless circuit 17 to the wireless channel 4 through the antenna (ANT), and signals from the wireless channel 4 and The voice information is sent to each wireless connection circuit 12 via the reverse path. The wireless circuit 17 and antenna are multiple wireless connection circuits.
In many cases, it is provided commonly to 12 (baseband line), but in FIG. 5, for simplification of description, these are shown to be provided corresponding to the wireless connection circuit 12.

The processor 15 captures the vacant wireless connection circuit 12 (referred to as BB ₁ ) in the two wireless connection circuits 12 and notifies the wireless channel 4 of the incoming call through the corresponding wireless circuit RF _1. The information and the number of the called cordless telephone PS ₁ (hereinafter, these pieces of information transmitted at the time of incoming connection are referred to as an incoming call signal) are transmitted. The wireless channel 2 is
Multiple call channels (S-Ch) for transmitting voice information etc.
In general, one or a small number of control channels (C-Ch) provided in common for a plurality of speech channels are used, but the above-mentioned incoming call signal is sent to the control channel.

Since the cordless telephone 3 periodically monitors the control channel, when the incoming call information is sent to the control channel, the cordless telephone 3 existing in the wireless zone receives the incoming call information to the control channel. Check if is addressed to you. In the example of FIG. 3, a cordless telephone P
Since S ₁ is located at a position where the wireless zone Z ₂ and the wireless zone Z ₃ overlap each other, it is in a state of being able to receive an incoming call signal from two wireless channels 4 from the base station device BS ₂ and the base station device BS ₃ . As will be described later, since an incoming call signal is transmitted from the base station device BS ₂ first, the incoming call signal is used to identify the incoming call to itself, and to notify that the incoming call has been identified (hereinafter, referred to as The area response signal) is sent to the base station apparatus BS ₂ via the control channel.

Processor of the base station device BS ₂ which has identified the in-zone response signal via the wireless connection circuit 12 (referred to as BB ₁ ).
Reference numeral 15 connects the wireless connection circuit BB ₁ and the cordless telephone PS ₁ via a call channel, and sends a call signal to the call channel. This call signal causes cordless telephone PS ₁
When the holder of the cordless telephone PS ₁ responds, the processor 15 connects the line connection circuit LD ₁ and the wireless connection circuit BB ₁ connected to the line L ₁ via the line matrix circuit 13. As a result, the calling terminal 6 and the cordless telephone PS ₁ start a call.

Here, a plurality of base station devices BS _{1 to} BS ₃
The operation of starting connection processing after a time lag will be described with reference to FIGS. 5 and 6. FIG. 6 is a diagram showing a sequence of a connection operation for receiving a cordless telephone. A plurality of base station devices BS _{1 to} B that are connected in duplicate from the line L _1.
A call signal S ₃ is transmitted (see a in FIG. 6), (in Figure 6B～d) each tone ringer circuit TR ₁ of the base station apparatus BS ₁ to BS ₃ receives this call signal simultaneously, as described above Each processor 15 detects an incoming call.

Line L is detected by incoming call detection.₁Connect to
A second dial tone that prompts the telephone number of the telephone
Which is transmitted (not shown in FIG. 6), and the line L₁To code
Phone PS₁Will be sent to you (a in Figure 6)
And each base station device BS₁~ BS ₃TR₁Is this phone number
Signals are received at the same time (Figs. 6b-d), and each process
Notify Sass 15.

The processor 15 starts the connection process by receiving the telephone number, but prior to the start of the connection process, the base station operation designating circuit (hereinafter referred to as BS) in the base station devices BS _{1 to} BS ₃ itself.
Start with 14). When the BS-SW 14 is activated, it counts time, and after a lapse of a predetermined time, the BS-SW 14 sends a signal to the processor 15 instructing that the connection process can be executed. The transmission start point of this signal indicates the connection processing start time.

The output of the BS-SW 14 shown in FIGS. 6b to 6d (hatched with dots) shows the time when the processor 15 can execute the connection process. As shown,
The connection processing start time instructed by the BS-SW ₁₄ differs depending on the base station device 10, and the base station device BS ₁ is after t ₁ after the end of receiving the cordless telephone number, BS ₂ is after t ₂ , and BS ₃ is t _3. After that, the connection process is set to be executable during the time T. In addition, in FIG.
To simplify the explanation, t ₂ = t ₁ + T, t ₃ = t ₂ +
Although T, it is actually t ₂ ≧ t ₁ + T, t ₃ ≧ t
Set so that ₂ + T.

As shown in FIG. 6, each base station device BS₁~
BS₃There is no overlap between the times when the connection process of the
Cordless telephone PS₁Electric power
T after receiving the talk number₁After that, the base station device BS₁
Only initiates the connection process to the cordless phone and
Cordless telephone PS on the control channel of line channel 4 ₁
Send out an incoming call signal for calling (in FIG. 6b).

[0060] However, since cordless telephone PS ₁ is the premise of Figure 3 does not exist in the radio zone Z ₁ of the base station apparatus BS _1, serving response from the cordless telephone set PS ₁ is not transmitted. If there is no response during the time period T, the processor 15 of the base station device BS ₁ times out, and the processor 15 determines that the called cordless telephone PS ₁ is not within the wireless zone Z ₁ of its own station. Release the connection process (Fig. 6b).

[0061] Later the t ₂ from the telephone number received, BS-SW14 of the base station apparatus BS ₂ issues an instruction for connection processing executable for (in Fig. 6c), the processor of the base station apparatus BS ₂
15 starts the connection process and sends an incoming call signal for calling the cordless telephone PS ₁ to the wireless channel 4 (in FIG. 6c).

The cordless telephone PS ₁ is a base station device BS
_Since it exists in the wireless zone Z _{2 of 2} , when this call signal is received (in FIG. 6e), the in-zone response notifying that it is in the zone is transmitted to the control channel (in FIG. 6e). When the processor 15 of the base station device BS ₂ receives this location response (in FIG. 6c), it starts the connection with the line L ₁ .

After t ₃ from the reception of the telephone number, the base station device BS ₃ similarly starts the connection processing to the cordless telephone PS ₁ and sends an incoming call signal to the wireless channel 4 (FIG. 6d). The cordless telephone PS ₁ is also in the radio zone Z ₃ of the base station device BS ₃ , but has already returned a response to the radio channel 4 of the base station device BS ₂ and has been switched to the call channel. Since it is in the switching standby state, this ringing signal is not received, or even if it is received, it is ignored (in FIG. 6e). Therefore, the base station device BS
Processor 15 in ₃ times out and releases the connection (Fig. 6d).

As described above, in the present invention, the private branch exchange 1 can perform the connection processing with respect to the called cordless telephone 3 without having the position information of the cordless telephone 3. At that time, the cordless telephone is controlled by the plurality of wireless zones 5 to control so that the plurality of base station devices BS _{1 to} BS ₃ do not conflict with each other.
There is no possibility that the wireless channel 4 is connected to the same line 2 twice.

Next, the operation of making a call connection from the cordless telephone 3 will be described with reference to FIGS. Also in this case, the cordless telephone PS ₁ is assumed to be located at the point shown in FIG. When the cordless telephone PS ₁ performs a predetermined operation to make a call, a call signal including the telephone number of the cordless telephone PS _{1 and} the telephone number of the other party is sent to the control channel of the wireless channel 4 (FIG. 7e). Based on the premise of FIG.
This calling signal is received by the base station device BS ₂ and the base station device BS ₃ (in FIGS. 7C and 7D), but the base station device BS ₁
Is not received (in FIG. 7b).

In the base station device BS ₂ and the base station device BS ₃ , the processor 15 identifies the calling signal from the cordless telephone PS ₁ , but the processor 15 is similar to the case of the incoming connection.
Since the BS-SW 14 is activated prior to the start of the connection process, the BS-SW 14 counts time and outputs a signal indicating that the connection process can be executed to the processor 15 after a predetermined time has elapsed. .

Therefore, the connection processing start time of the base station device BS ₂ is t ₂ after the call signal reception, and the connection process start time of the base station device BS ₃ is t ₃ after the call signal reception (FIG. 7c).
And d). In this example, since the base station device BS ₁ does not receive the call signal, the BS-SW ₁₄ does not start (and in FIG. 7b), but the base station device BS ₂ does not depend on the operation of the base station device BS ₁ . The connection process is started after time t ₂ .

When the connection processing becomes possible, the processor 15 of the base station device BS ₂ returns a base station response notifying that the cordless telephone PS ₁ has received the calling signal through the control channel of the wireless channel 4 ( Figure 7b).

When the cordless telephone PS ₁ receives the base station response, it returns an acknowledgment indicating the reception (FIG. 7e).
And). When the processor 15 of the base station device BS ₂ receives the confirmation response (FIG. 7c), it selects the call channel and the idle line 2 (designated as line L ₁ ) and controls the corresponding line connection circuit LD ₁ . Then, the outgoing connection process is executed.

As a result, the private branch exchange 1 (see FIG. 3) connects to the connection partner (referred to as the terminal 6), and when the called terminal 6 responds, it sends a response signal to the line L ₁ . Base station device B
When the processor 15 of S ₂ receives the response signal via the line connection circuit LD ₁ , the wireless connection circuit 12 (referred to as BB ₁ ) and the line connection circuit LD corresponding to the previously selected speech channel.
₁ is connected by the line matrix circuit 13, and a call is started.

On the other hand, the processor 15 of the base station device BS ₃ starts the connection processing t ₂ after receiving the call signal and returns the base station response to the previous call signal to the cordless telephone PS ₁ (FIG. 7d). However, since the cordless telephone PS ₁ has already returned the confirmation response to the base station device BS ₂ , it does not receive the base station response from the base station device BS ₃ or ignores it even if it receives it (FIG. 7e). of). Therefore, the processor 15 of the base station device BS ₃ times out,
Release the connection process (Fig. 7d).

As described above, the cordless telephone P of FIG.
S ₁ is a plurality of base station devices BS ₂ and BS ₂ when a call is made even if the plurality of wireless zones Z ₂ and Z ₃ are located at the same point.
There is no double connection by ₃ . In addition,
The above is the connection between the terminal 6 and the cordless telephone 3, but the description of the connection from the cordless telephone 3 to another cordless telephone 3 will be omitted because there is no difference from the above.

Next, a method (claim 2) in which the line 2 and the cordless telephone 3 are associated with each other will be described. In the above embodiment, the line 2 is a line shared by all cordless telephones 3, but in this system, the line 2 is connected to the cordless telephones 3 and 1.
The telephone numbers of the cordless telephones 3 installed on the pair 1 are set individually, like the accommodation terminals 7 of the private branch exchange 1. As an example, the case where the line L ₁ in FIG. 5 is installed as a dedicated line in the cordless telephone PS ₁ in FIG. 3 will be described.

When the private branch exchange 1 receives an incoming call to the cordless telephone PS ₁ , the private branch exchange ₁ captures the line L ₁ shown in FIG. 5 from the received telephone number, as in the case where the extension telephone is connected to this line. Send a call signal to. This ringing signal is received by the tone ringer circuit TR ₁ of all the base station devices BS _{1 to} BS ₃ to which the line L ₁ is connected in duplicate.

Processor of each base station device BS _{1 to} BS ₃
When 15 identifies the incoming call to the line L ₁ from the number of the tone ringer circuit TR ₁ which has received the ringing signal, the called cordless telephone 3 is displayed by a table (not shown) in which the line number and the cordless telephone number are associated with each other. Is a cordless phone PS ₁ .

As a result, the connection process is started, but at this time, each processor 15 has BS- in its own base station device.
Since starting the SW14, connecting motion starting timing difference is applied by the base station apparatus BS ₁ to BS _3. The operation sequence of this incoming connection is the same as that of FIG. 6 except that the cordless telephone number is not received. If the point where the calling signal is stopped in FIG. 6 is the starting point of BS-SW14, BS-SW
14 Since the operation after activation is the same as that in FIG. 6, detailed description will be omitted.

Next, the case of making a call from the cordless telephone PS ₁ will be described. In this case, the processor 15 of the base station device BS ₂ uses the cordless telephone P included in the calling signal.
When the telephone number of S ₁ is identified, the corresponding line L ₁ is captured and the outgoing call connection is made to the private branch exchange 1. The operation sequence in this case is the same as that in FIG. 7. The private branch exchange 1 can identify that the caller is the cordless telephone PS ₁ when there is an incoming call on the line L _1. Therefore, even when the caller information is necessary, the identification information of the calling cordless telephone 3 from the base station device 10 ( You do not need to receive a phone number).

As described above, in the system in which the line 2 and the cordless telephone 3 are associated with each other one by one, the number of the lines 2 is large, but the cordless telephone 3 can be handled exactly the same as the extension telephone, so that the user can operate it. Private exchange 1
The connection process of is also simple. This method is effective when the total number of cordless telephones 3 is small.

Next, an embodiment will be described with reference to FIG. 4 of a system (claims 3 and 4) for transferring an incoming call when the cordless telephone 3 that has made a connection does not respond.
As described above, the cordless telephone system for intra-company communication has a relatively narrow wireless zone. Therefore, when the cordless telephone system is installed in a large area, the number of wireless zones 5 may increase. On the other hand, even if the premises are large, the area used for each cordless telephone 3 is often limited to, for example, a specific building or floor.

In such a case, in the cordless telephone system of the present invention, all the wireless zones 5 are not set as one group, but one or several wireless zones 5 are set as one group and a plurality of areas (hereinafter,
The efficiency of the line 2 and the base station device 10 is improved by limiting the service area used for outgoing / incoming call connection for each cordless telephone 3 separately.

FIG. 4 shows an example of the configuration of such a cordless telephone system. In FIG. 4, three service areas A _{1 to} A ₃ each having three wireless zones Z _{11 to} Z ₁₃ , Z _{21 to} Z ₂₃ , and Z _{31 to} Z ₃₃ are provided,
Each cordless telephone 3 has its own service area A ₁ ...
It is determined that the outgoing / incoming call connection should be made only in any one of the service areas 8 of A ₃ . In this configuration, the line 2 is connected to only a plurality of base station devices 10 in each service area 8 in a multiple manner. However, for simplification, in FIG.
Only the lines are shown.

In FIG. 4, cordless telephone PS₁₁Is
Service area A₁Cordless phone to make and receive calls within
Machine, that is, service area A₁As a home area
Suppose it is a dress phone. Now code from terminal 6
Phone PS₁₁Call to private branch exchange 1
And, as described with reference to FIG. 3 and FIGS.
The exchange 1 has an idle line 2 (in the case of the method of claim 1) or
Call cordless telephone PS ₁₁Line 2 (contract
In case of method 2), select service area A₁Within
Any of the wireless zone Z₁₁~ Z₁₃Existing code
Phone PS₁Call.

At this time, for example, the cordless telephone PS
₁₁ is moving to another service area 8, the user of the cordless telephone PS ₁₁ is absent due to a business trip, or the cordless telephone PS ₁₁ is turned off at night, on a holiday, etc. There is no response from the telephone PS ₁₁ . FIG. 4 is configured to transfer an incoming call when the called cordless telephone does not respond.
There are two types of call transfer: fixed call transfer, in which the transfer destination is semi-fixedly determined, and variable call transfer, in which an arbitrary transfer destination is designated whenever transfer is required. The method of claim 3 is fixed call transfer The method, claim 4 is a variable call transfer method.

First, the fixed call transfer method of claim 3 will be described. In this system, the fixed call transfer processing unit 21 is provided in the private branch exchange 1. However, the cordless telephone number 3 is also used in the method of connecting to the cordless telephone 3 in the method of claim 1 as well. Any of the methods of claim 2 may be used.

When connecting using the cordless representative number, the transfer destination service area 8 is defined for each service area 8. For example, the call transfer destination of the cordless telephone 3 whose home area is the service area A ₁ is determined to be the service area A _2, and the transfer destination information (for example, the numbers of the transfer destination lines L ₃ and L ₄ ) Is stored in the call transfer processing unit 21 in the private branch exchange 1 or in an appropriate memory (not shown).

Private branch exchange 1 is line L₁Through cord
Phone PS₁₁Cordless when making a connection to
Phone PS₁₁Is home area A₁No response to
No, but cordless phone PS even after a predetermined time
₁₁If there is no response, the fixed call transfer processing unit of the private branch exchange 1
21 is service area A₂Available in multiple lines 2 for
Line (L₃Base station device BS_{twenty one}~ BS_{twenty three}
Connect to. According to the method of claim 1, the base station device BS_{twenty one}~
BS_{twenty three}After the connection to the
The number of the dress phone is sent, so BS_{twenty one}~ BS
_{twenty three}Is service area A₂Each has its own wireless channel
Called cordless telephone PS via ₁₁Call.

When connecting using the line 2 defined for each cordless telephone in the configuration of FIG. 4, the transfer destination is specified not for each service area 8 but for each cordless telephone 3. According to the method of claim 2, since the number of the cordless telephone 3 of the connection destination is sent to the private branch exchange 1, a different fixed transfer destination can be set for each cordless telephone. For this reason, when the cordless telephone PS ₁₁ does not respond, the fixed call transfer processing unit 21 of the private branch exchange 1 causes the cordless telephone P 11 to
The line 2 to the service area 8 of the transfer destination designated for S ₁₁ is captured and connected.

As described above, the cordless telephone PS ₁₁
The incoming call to is transferred to a designated service area 8 other than the home area A ₁ for connection, but the transfer destination is not limited to the service area 8 other than the home area, and is a fixed terminal such as the accommodation terminal 7. May be. For example, if a telephone such as a guard room is designated as a fixed transfer destination when an incoming call arrives during a time when the cordless telephone PS ₁ is not used due to overtime, holidays, or night, the call to the cordless telephone PS _{1 will be received} . The call can be forwarded to these accommodation terminals.

Next, the variable call transfer method of claim 4 will be described. In this system, the variable call transfer processing unit 22 is provided in the private branch exchange 1. However, the connection method to the cordless telephone 3 is limited to the method of claim 2 in which each line 2 and the cordless telephone 3 are connected in association with each other.

In this system, the cordless telephone PS ₁₁ registers the transfer destination to be transferred when the private branch exchange 1 receives an incoming call when it is absent. For example, a cordless telephone PS ₂₁ whose home area is the service area A ₂
It has specified a number of cordless telephone PS ₂₁ when forwarding the (registration method is omitted the detailed description can be realized by known techniques).

When the private branch exchange 1 receives an incoming call to the cordless telephone PS _{11 in} this state, the variable incoming call transfer processing unit 22 of the private branch exchange 1 confirms whether or not the call forwarding is registered. _The line 2 (eg, line L ₃ ) defined in the transfer destination cordless telephone PS ₂₁ is captured and connected without capturing the line (eg, line L ₁ ) defined in ₁₁ . Even in the case of the variable call transfer method, the transfer destination is not limited to the cordless telephone 3 and may be any accommodation terminal 7.

The functions of the fixed call transfer processing unit 21 and the variable call transfer processing unit 22 described above can be used not only for the call transfer of the cordless telephone 3 but also for the call transfer between the general accommodation terminals 7. In other words, the fixed call transfer processing unit 21 of the present invention
The function of the variable call transfer processing unit 22 is basically the same as the call transfer function of a general private branch exchange. By using this general function, a wide area cordless telephone system can be provided in a wide premises having a plurality of service areas. Connection processing can be performed.

As described above, according to the present invention, the private branch exchange 1 does not need a dedicated function for connecting and receiving the cordless telephone 3, and it is not necessary to add a dedicated connecting device. A cordless telephone system can be constructed economically and easily using the private branch exchange.

In the present invention, the base station apparatus 10 requires some devices and functions, but most of the functions are also necessary for the conventional cordless telephone connection, and newly required devices. Since it has a simple structure, it does not impose a heavy financial burden. For example, the line matrix circuit 13 is not large because the number of wireless connection circuits 12 is usually small. Also,
Since the base station device 10 accommodates a plurality of lines 2, the number of line corresponding circuits (the line connection circuit 11 and the tone ringer circuit 16) increases, but these circuits have a relatively simple configuration in which general-purpose elements are combined. Is.

Further, it is necessary to add a processing function to the processor 15 in order to correspond to the present invention, but as is clear from the above description, the function originally possessed by the base station device for cordless telephones. The function added to does not perform complicated processing. Note that the number of wireless circuit compatible circuits (wireless connection circuits 12 and wireless circuits 17) is determined by the number of wireless channels provided for traffic, and the number is not increased by the present invention.

Further, in the present invention, since the line 2 is connected in a multiple manner between the private branch exchange 1 and the plurality of base station devices 10, the total number of lines connected to the base station device 10 becomes large, but Since it is premised that the cordless telephone 3 of the system is used in a company premises, the private branch exchange 1 and each base station device
Normally, the distance between 10 and each base station device 10 is not so long, and the line cost does not become too large.

Although the embodiment of the present invention has been described above with reference to FIGS. 3 to 7, FIGS. 3 to 7 merely show a part of the embodiment of the present invention, and the present invention is illustrated. Needless to say, it is not limited to one.

For example, in the above, the line 2 is a two-wire type line having an interface for an analog single telephone, and the line connection circuit 11 and the tone ringer circuit 16 of the base station apparatus 10 of FIG. 5 are adapted to the above interface. Although it has been described that the line 2 has a configuration corresponding to a button telephone device having a call line and a control line, or a configuration corresponding to a digital line having a call channel and a control channel, a known technique is used. It is obvious that this can be done easily, and this does not change the effect of the present invention.

In the above description, the embodiment in which the exchange 1 of FIG. 1 is used as the private branch exchange has been described, but the exchange 1 of FIG. 1 is not limited to the private branch exchange. As described in the embodiment, when the line 2 is a two-line type line having an interface for an analog type single telephone, it is possible to directly connect to the base station device 10 from the subscriber exchange of the public communication network. Is clear. In this case, the subscriber exchange of the public communication network can be connected to the cordless telephone 3 in the company in the same manner as when connecting to the extension telephone of the private branch exchange by the additional dial method.

Further, in the above embodiment, the radio channel 4 is composed of the control channel and the communication channel, but the effect of the present invention does not change even if the method of transmitting and receiving the control signal by the communication channel is used.

Further, in the above description, the cordless telephone 3
The connection processing start time was set for each of the base station devices BS _{1 to} BS ₃ using the BS-SW ₁₄ when making the outgoing / incoming connection of the cordless telephone. There is a method of choosing,
With this method, outgoing connection can be performed without using the connectable operation time. FIG. 8 shows the operation sequence of the cordless telephone transmission when the cordless telephone PS _{1 of} FIG. 3 is of this system, and FIG. 8 will be described below.

Cordless telephone PS of the above system₁Is leaving
When calling, the service area (in FIG. 3, wireless zone Z₁
~ Z₃Each base station device BS in the area
₁~ BS₃The wireless channels 4 are sequentially switched to make a call.
Cordless telephone PS now ₁Is the base station device BS₁, B
S₂, BS₃Set to switch wireless channel 4 in the order
If it is set, the base station device BS is first₁
Wireless channel 4 is selected and a calling signal is transmitted (see FIG. 8).
e). Assuming that FIG. 3 is a cordless telephone PS₁Is based
Ground station equipment BS₁Wireless zone Z₁Because this is not within
The calling signal is the base station device BS.₁Is not received by (Fig. 8b
of).

If there is no base station response within the fixed time, the cordless telephone PS ₁ makes a call to the radio channel 4 of the base station device BS ₂ after a preset time t _s (FIG. 8e). This calling signal is received by the base station device BS ₂ (in FIG. 8b), and a base station response is made from the base station device BS ₂ (in FIG. 8b). When the base station response is received, a confirmation response is sent from the cordless telephone PS ₁ (not shown), but the subsequent operation is the same as that already described, and the description is omitted. If there is no response from the base station device BS ₂ as well, the same operation is performed with the base station device BS ₃ after a further time t _s has elapsed as shown by the dotted line in FIG.

As described above, in the method of FIG. 8, the time for designating the connectable operation is not set in the processor 15 in the case of a cordless telephone call, but the present invention adopts such a modified method for one of the outgoing and incoming call connections. Does not exclude when to use.

[0105]

As described above, since the system of the present invention does not require a complicated and expensive dedicated function for controlling the connection to the cordless telephone, the conventional private branch exchanges and the like, which are commonly used in the past, are used. The private branch exchange can control the connection of the cordless telephone.

Therefore, it becomes economically very easy to construct a cordless telephone system in a company communication network,
The introduction of cordless telephones will greatly contribute to improving the convenience of communication in the corporate communication network.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram (1) of the present invention.

FIG. 2 is a basic configuration diagram of the present invention (2)

FIG. 3 is a system configuration diagram (1) of an embodiment of the present invention.

FIG. 4 is a system configuration diagram (2) of an embodiment of the present invention.

FIG. 5 is a block diagram of a base station device according to an embodiment of the present invention.

FIG. 6 is an operation sequence diagram (1) of the embodiment of the present invention.

FIG. 7 is an operation sequence diagram (2) of the embodiment of the present invention.

FIG. 8 is an operation sequence diagram (3) of the embodiment of the present invention.

FIG. 9 is a system configuration diagram of a conventional technique.

FIG. 10 is a block diagram of a conventional base station device.

[Explanation of symbols]

 1 exchange 2 lines 3 cordless telephone 4 wireless channel 5 wireless zone 6 terminal 7 accommodation terminal 8 service area 10 base station device 11 line connection circuit 12 wireless connection circuit 13 connection means 14 base station operation designation means 15 control means 21 fixed call transfer processing Means 22 Variable call transfer processing means

Claims (4)

[Claims] 1. A switch (1) and a plurality of base station devices (10) each having one or a plurality of radio channels (4) are connected in a multiple manner by a plurality of lines (2), and the switch (1) is connected to the switch (1). Cordless telephone (3) existing in a wireless zone (5) forming a connection range between the connected terminal (6) and each base station device (10)
Is a cordless telephone system for connecting via the line (2) and the wireless channel (4), in each of the base station device (10), connected to the line (2), the switch (1 ) Accommodation terminal
A plurality of line connection circuits (11) having the same interface as (7), one or a plurality of radio connection circuits (12) connected to each of the radio channels (4), and a plurality of line connection circuits (11) ) And the connection means (13) for selectively connecting the one or more wireless connection circuits (12), and a different connection for each preset base station device (10) when activated by the control means (15). Base station operation designating means (14) for designating the processing start time to the control means (15), and the terminal (6) or the cordless telephone (3) via the line (2) or the wireless channel (4). When the connection request is received from the base station operation designating means (14), the connection processing is started at the connection processing start time designated by the base station operation designating means (14), and the line (2 ) And the signal transmission / reception processing of the wireless channel (4), and the connecting line (2)
And the line connection circuit (11) corresponding to the wireless channel (4)
And a control means (15) for controlling the connection between the wireless connection circuit (12) and the wireless connection circuit (12) by the connection means (13). 2. The plurality of lines (2) are respectively associated with the plurality of cordless telephones (3), and when the exchange (1) receives a connection request to the cordless telephone (3), the called cordless telephone is called. (3) identifies the corresponding line (2) and then connects to the base station device (10) via the line (2), and the control means (14) in the base station device (10) , The line
When there is an incoming call from (2), the corresponding cordless telephone (3) is identified from the incoming line (2) and the cordless telephone is identified.
(3) is connected, and when the connection request is received from the cordless telephone (3) via the wireless channel (4), the corresponding line (2) is identified from the identification information of the cordless telephone (3), and then the corresponding line (2) is identified. The simple cordless telephone system according to claim 1, characterized in that the exchange (1) is connected via a line (2). 3. One or more wireless zones each (5)
When a plurality of service areas (8) consisting of the cordless telephones (3) are provided, a service area (8) for making outgoing and incoming connection is defined for each of the plurality of cordless telephones (3), and the accommodation terminal (7) or semi-fixed when the cordless telephone (3) connected via the line (2) to the base station device (10) in the specified service area (8) is absent or unresponsive. Base station equipment (10) of other accommodation terminal (7) or other service area (8) specified in
Fixed call transfer processing means (2) for transferring an incoming call to the line (2) to
The simple cordless telephone system according to claim 1 or 2, further comprising 1). 4. One or more wireless zones (5) each
If a plurality of service areas (8) consisting of the above are provided, define a service area (8) for making incoming and outgoing connections for each of the plurality of cordless telephones (3), and connect within the exchange (1). When a call transfer request is made in advance from the accommodating terminal (7) or cordless telephone set (3), the base station device (10) of another designated accommodating terminal (7) or other service area (8) ) To ()
The simple cordless telephone system according to claim 2, further comprising variable incoming call forwarding processing means (22) for forwarding the incoming call.