JPH05292559A - Multi-functional telephone set connecting system - Google Patents

Abstract

PURPOSE:To reduce the number of digital subscriber lines and resources of an exchange in the multi-functional telephone set connecting system for multiple connection of plural digital multi-functional telephone sets. CONSTITUTION:A line concentrating and distributing device 7 is provided which connects digital multi-functional telephone sets 4 to an exchange 1 by plural digital subscriber lines 5 connected to the exchange 1 and is connected to many digital multi-functional telephone sets by digital subscriber lines. The line concentrating and distributing device distributes and transfers the signal, which is transmitted from the exchange through a prescribed digital subscriber line, to plural prescribed digital multifunction telephone sets and mixes signals transmitted from plural prescribed digital multi-functional telephone sets. A multiple connection means 100 is provided which transfers signals to the exchange through a prescribed digital subscriber line and is capable of multiline connection and mutual connection between digital multi-functional telephone sets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunction telephone connection system for connecting a plurality of digital multifunction telephones.

[0002]

2. Description of the Related Art FIG. 5 is a diagram showing an example of a multiple connection of an analog telephone, and FIG. 6 is a diagram showing an example of a connection system of a conventional digital multifunction telephone.

In FIG. 5, one analog subscriber line 3 accommodated in a set of analog subscriber circuits (ALC) 13 of the exchange 1 is connected to two analog telephones 2 (each analog telephone is 2 _A). And 2 _B ) are connected in duplicate.

The exchange 1 arrives at the analog subscriber line 3.
When a call originates, an analog subscriber circuit (ALC) 13
There are two calling signals sent from the analog subscriber line 3
Analog phone 2_AAnd 2_BTransmitted in parallel to
Both analog phones 2 _AAnd 2_BIncoming call to
Set each analog telephone 2_AAnd 2_BUsers respond
Then, each user can talk to the other subscriber in parallel.
It

Further, both of the analog telephones 2 _A and 2 _B can make a call to the exchange 1 via the analog subscriber line 3 to make a call with an arbitrary called subscriber. If the user of one analog telephone (for example, analog telephone 2 _A ) makes an outgoing call and the user of the other analog telephone (for example, analog telephone 2 _B ) picks up the handset, the user of analog telephone 2 _B will also It becomes possible to talk to the other subscriber.

On the other hand, in FIG. 6, one digital multi-function telephone (DKT) 4 is connected to each one digital subscriber line 5 accommodated in each of the two digital subscriber lines 5 of the exchange 1. Has been done.

Each digital multifunction telephone (DKT) 4
Is equipped with a large number of function buttons which the analog telephone 2 does not have and a small character display, and transmits and receives various digitally encoded control signals to and from the exchange 1 via the digital subscriber line 5. By doing so, it provides users with advanced telephone services.

A digital multi-function telephone (DKT) 4
Also digitally encodes a voice signal transmitted and received by a user, and together with the above-mentioned control signal, in a time-division bidirectional multiplexing format (so-called ping-pong transmission format) with the digital subscriber circuit (DLC) 14 of the exchange 1. Since one-to-one transmission / reception is performed, it is impossible to connect a plurality of digital multi-function telephones (DKT) 4 to one digital subscriber line 5 in a multiple manner like the analog telephone 2 described above.

[0009]

As is apparent from the above description, in the conventional digital multifunction telephone,
Since it is impossible to connect a plurality of digital multi-function telephones (DKT) 4 to one digital subscriber line 5 in a multiple manner, the number of digital multi-function telephones (DKT) 4 of digital subscriber lines 5 and Digital subscriber circuit (D
LC) 14 is required, and by connecting a plurality of analog telephones 2 to the analog subscriber line 3 like the analog telephone 2, the resources of the analog subscriber line 3 and the exchange 1 [analog subscriber circuit (ALC)] 13 and the accommodating terminals of the network (NW) 11] was not possible.

It is an object of the present invention to save the resources of a digital subscriber line that houses a digital multifunction telephone in an exchange and the exchange.

[0011]

FIG. 1 is a diagram showing the principle of the present invention. In FIG. 1, 1 is an exchange, 4 is a digital multi-function telephone, and 5 is a digital subscriber line.

Reference numeral 7 is a concentrator / distributor provided between the exchange 1 and the digital multi-function telephone 4 according to the present invention.

[0013]

The concentrator / distributor 7 is connected to the exchange 1 by a plurality of digital subscriber lines 5 each connecting the digital multi-function telephone 4 to the exchange 1, and at the same time, the digital multi-functional telephones 4 are provided in a number larger than the digital subscriber lines 5. Connected to.

The multiple connection means 100 distributes and transfers a signal transmitted from the exchange 1 via a predetermined digital subscriber line 5 to a plurality of predetermined digital multifunction telephones 4, and The signals transmitted from a plurality of predetermined digital multifunction telephones 4 are mixed and transferred to the exchange 1 via the predetermined digital subscriber line 5.

The multiple connection means 100 selects a combination of a predetermined digital subscriber line 5 and a plurality of predetermined digital multifunction telephones 4 from at least one of the digital multifunction telephone 4 and the exchange 1. It is considered to set and update based on the command transmitted.

The line concentrator / distributor 7 receives an incoming call transmitted from the exchange 1 via an arbitrary digital subscriber line 5.
Arbitrary digital multi-functional telephone 4 designates incoming digital subscriber line 5 to enable response, and arbitrary digital multi-functional telephone 4 designates arbitrary digital subscriber line 5
It is considered that the call can be transmitted to the exchange 1 via the route.

Further, the line concentrator / distributor 7 is selected by another digital multi-function telephone 4 accommodated in the line concentrator / distributor 7 by calling a predetermined digital multifunction telephone 4 and executing a predetermined selection operation. It is considered that the telephone 4 can be connected without going through the exchange 1.

Therefore, a plurality of digital multi-function telephones are accommodated in the exchange by less than the total number of digital multi-function telephones in the exchange, so that the resources of the digital subscriber line and exchange can be saved, and A plurality of digital multi-function telephones can be connected to the digital subscriber line of this book in a similar manner, and a plurality of digital multi-function telephones can be subscribed to by a plurality of digital multi-function telephones in the same manner as a digital type key telephone device. It is also possible to directly specify a private line and make incoming / outgoing calls, or to mutually connect the digital multi-function telephones within the concentrator / distributor, thereby improving the convenience of the digital multi-function telephone.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 2 is a diagram showing a concentrator / distributor according to an embodiment of the present invention, FIG. 3 is a diagram showing an example of the multiple connection in FIG. 2, and FIG. 4 is a diagram showing an example of the telephone interconnection in FIG. is there. The same reference numerals denote the same objects throughout the drawings.

In FIG. 2, as the multiple connection means 100 in FIG. 1, a control unit (CTL) 74 having association data 7416 and a control unit (CTL).
A switch unit (SW) 73 controlled by 74 is provided in the line concentrator / distributor 7.

The concentrator / distributor 7 illustrated in FIG. 2 is connected to the exchange 1 by two digital subscriber lines 5 (individual digital subscriber lines 5 ₁ and 5 ₂ , hereinafter the same). , Three digital multifunction phones (D
KT) 4 (individual digital multifunction telephones (DKTs) are referred to as 4 _A , 4 _B , 4 _C, and so on) and three digital telephone lines 6 are connected to each digital subscriber line. There are further provided two sets of exchange-side line parts (CCT) 71 for accommodating 5 and three sets of telephone line parts (CCT) 72 for accommodating each digital telephone line 6, respectively.

The exchange side circuit unit (CCT) 71 is connected to the corresponding digital subscriber circuit (DLC) 14 via the digital subscriber line 5 and the digital subscriber circuit (DLC) 14 shown in FIG. And the digital multi-function telephone (DKT) 4, the voice band signal and the control signal are transmitted in a time division two-way multiplex format, and the telephone side line section (CCT) 72 is connected to the digital telephone line 6.
The digitally encoded voice band signal and control signal similar to the above are transmitted to the corresponding digital multi-function telephone (DKT) 4 via the time-division bidirectional multiplexing format.

Each digital subscriber line 5 and digital telephone line 6 shown in FIG. 2 has the same basic interface as recommended by CCITT for a user / network interface in an integrated service digital network (ISDN). Two channels (corresponding to B channel in ISDN) for transmitting digitally encoded voice band signals and one channel (IS for transmitting control signal)
Corresponding to the D channel in DN),
Of the two channels for voice band signal transmission, one is used for voice signal transmission and the other is used for transmission of character information and the like.

Each of the exchange side line unit (CCT) 71 and the telephone side line unit (CCT) 72 is an information transmission unit (L).
T) and an information control unit (CT), and the information transmission unit (LT) controls transmission in the time division bidirectional multiplexing format via the digital subscriber line 5 or digital telephone line 6 accommodated therein, respectively. The information control unit (CT) controls multiplexing and demultiplexing of voice band signals and control signals transmitted and received by the information transmission unit (LT).

In the association data 7416 in the control unit (CTL) 74, the digital telephone lines 6 _A and 6 _B are duplex-connected to the same digital subscriber line 5 ₁ , and the digital telephone line 6 _{C is also used.} what but information indicating that it is solely connected to the digital subscriber line 5 ₂ is set in advance from the digital multi-function telephone (DKT) 4 either, or unexpected illustrated exchanges 1 operation and maintenance console or the like And

In such a state, digitally join the exchange 1.
Work line 5₁When an incoming call to the
Setting message is Digital Subscriber Circuit (DLC)
14 ₁And digital subscriber line 5₁Concentrated segment via
It is transferred to the distribution device 7.

In the line concentrator / distributor 7, the exchange side line unit (CCT) 71 ₁ receives the call setting message transferred from the exchange 1 via the digital subscriber line 5 ₁ , and the control unit (CTL) 74. Communicate to.

The control unit (CTL) 74 receives the transmitted call setting.
A regular message is sent to the line information receiving unit 7411 for the terminal status.
Through the analyzing unit 7412 and the reception information analyzing unit 7413, the terminal
To the command editor 7414 and the command processor 7415.
Reached and digital subscriber line 5 ₁Incoming call settings for
When the message is requested, the terminal order editing unit 7
414 and command processing unit 7415 to associate
Digital subscriber line
5₁Is a digital telephone line 6_AAnd 6_BIs connected to
If it is recognized that the terminal order editing unit 7414
Digital multi-functional telephone (DKT) 4_AAnd 4
_BEdit the call setup messages for
Telephone line section (CCT) 72_AAnd 72_B, And de
Digital telephone line 6_AAnd 6_BVia digital
Multifunctional telephone (DKT) 4_AAnd 4_BTo transfer to
In both cases, the command processing unit 7415 causes the switch unit (S
W) 73 Create a command for control, switch side line section
(CCT) 71₁Call each voice signal arriving from
Machine side line unit (CCT) 72_AAnd 72_BDistributed to
Send, and telephone line section (CCT) 72_AAnd 72
_BThe voice signals arriving from the
CT) 71₁Set to transfer to.

The digital multi-function telephones (DKTs) 4 _A and 4 _B enter the incoming call display state by receiving the call setting message transferred from the concentrator / distributor 7, respectively, and when each user answers, a response message is sent. Edited and transferred to the concentrator / distributor 7 via the digital telephone lines 6 _A and 6 _B , respectively.

In the concentrator / distributor 7, the telephone side line units (CCT) 72 _A and 72 _B are respectively passed from the digital multi-function telephones (DKT) 4 _A and 4 _B via the digital telephone lines 6 _A and 6 _B. The transferred response message is received and transmitted to the control unit (CTL) 74.

The control unit (CTL) 74 sends the response message transmitted from the telephone side line units (CCT) 72 _A and 72 _B to the terminal information receiving unit 741 and the terminal state analyzing unit 74.
2, reception information analysis unit 743 and line capture processing unit 744
To a command processing unit 745 and a terminal event editing unit 746 via a digital multi-function telephone (DKT).
When it is determined that the response message is from 4 _A or 4 _B , the command processing unit 745 causes the association data 74
16 to refer to digital multifunction telephone (DKT) 4
_When it is recognized that _A and 4 _B are connected to the digital subscriber line 5 ₁ by multiple connections, the terminal event editing unit 746 causes the response message for the digital subscriber line 5 ₁ to be edited, and the exchange side circuit unit (CCT) 71 ₁ And to the exchange 1 via the digital subscriber line 5 ₁ .

From the above, in response to an incoming call from the exchange 1,
Digital multifunction telephone (DKT) 4_AAnd 4_BIs
This is the answer, and the digital subscribers from switch 1
Line 5 ₁Signal transferred to the concentrator / distributor 7 via
Are distributed by the switch unit (SW) 73, and
Digital telephone line 6_AAnd 6_BVia Digital
Multi-function telephone (DKT) 4_AAnd 4_BTransferred to
Let each user listen, and use the digital multifunction telephone (D
KT) 4_AAnd 4_BTo digital telephone line 6_AAnd
And 6_BEach user transferred to the concentrator / distributor 7 via
Sound signals are mixed by the switch unit (SW) 73.
Digital subscriber line 5₁Transfer to Switch 1 via
And is heard by the other subscriber.

Next, a digital multifunction telephone (DKT)
When a user of either 4 _A or 4 _B (for example, a digital multi-function telephone (DKT) 4 _A ) makes a call, a message for call setting is sent from the digital multi-function telephone (DKT) 4 _A.
It is transferred to the line concentrator / distributor 7 via the digital telephone line 6 _A.

In the concentrator / distributor 7, the telephone side line unit (CCT) 72 _A is a digital multifunction telephone (DK).
T) Receives the call setting message transferred from 4 _A via the digital telephone line 6 _A , and controls (CTL) 7
Communicate to 4.

The control unit (CTL) 74 transfers the transmitted call setting message to the line acquisition processing unit 744 and the command processing unit 745 via the terminal information receiving unit 741, the terminal state analyzing unit 742, and the reception information analyzing unit 743. If the message is transmitted and the message is requested from the digital multi-function telephone (DKT) 4 _A to request call setup, the command processing unit 745 refers to the association data 7416, and the digital telephone lines 6 _A and 6 _B are connected to the digital subscriber line 5 _1. When the terminal event editing unit 746 edits the call setting message, the terminal event editing unit 746 transfers the call setting message to the exchange ₁ through the exchange side line unit (CCT) 71 ₁ and the digital subscriber line 5 ₁ . At the same time, the command processing unit 745 causes a command for controlling the switch unit (SW) 73 to be created, Machine side line portion (CCT) 72 _A and 72 audio signals by mixing the audio signal with the exchange-side line part (CCT) was transferred to 71 _1, and arriving from the exchange side line section (CCT) 71 ₁ arriving from _B Telephone line section (CCT) 72 _A and 72 _B Set to be distributed and transferred.

The exchange 1 executes a predetermined call setting process corresponding to the call setting message transferred from the concentrator / distributor 7, and when the called subscriber responds, the reply message is edited and the digital subscriber line 5 ₁ Concentration distribution device 7 via
Communicate to.

In the line concentrator / distributor 7, the exchange side line unit (CCT) 71 ₁ receives a response message transferred from the exchange 1 via the digital subscriber line 5 ₁ .
It is transmitted to the control unit (CTL) 74.

The control unit (CTL) 74 sends the transmitted message to the line information receiving unit 7411 and the terminal state analyzing unit 74.
12, when via the receiving information analyzing unit 7413 and transmitted to the command processing unit 7415 and the terminal order editing unit 7414, determines that the response message from the digital subscriber line 5 _1, terminal order editing section 7414 and a command processing unit 7
415, the association data 7416 is referred to, and the digital subscriber line 5 ₁ is connected to the digital telephone line 6 _A.
And 6 _B , the terminal order editing unit 7414 causes the response messages to the digital multifunctional telephones (DKT) 4 _A and 4 _B , respectively, to be edited, and the telephone side line unit (C
CT) 72 _A and 72 _B and digital telephone line 6
Transfer to the digital multi-function telephone (DKT) 4 _A and 4 _B via _A and 6 _B , respectively.

From the above, the digital multifunction telephone (D
The terminating subscriber has responded to the call from KT) 4 _A. Thereafter, the digital multifunction telephone (DKT) 4 _A
From the digital telephone line 6 _A to the concentrator / distributor 7
The voice signal of each user transferred to the
W) 73 is mixed, transferred to the exchange ₁ via the digital subscriber line 5 ₁ and heard by the other subscriber, and transferred from the exchange 1 to the concentrator / distributor 7 via the digital subscriber line 5 _1. The audio signal to be transmitted is the switch (S
W) 73 and the digital multifunction telephone (D) via digital telephone lines 6 _A and 6 _B , respectively.
KT) 4 _A and 4 _B for listening to the user.

In this state, when the user of the other digital multi-function telephone (DKT) 4 _B makes a call, the digital multi-function telephone (DKT) 4 _B uses the response message from the concentrator / distributor 7 in the already received state. The person recognizes that the call has been made, and enters the normal call state.

Thereafter, a digital multi-function telephone (DKT) 4
_The user's voice signal transferred from _B to the concentrator / distributor 7 via the digital telephone line 6 _B is also switched by the switch unit (S
W) 73 is mixed, is transmitted to the exchange ₁ via the digital subscriber line 5 ₁ , is heard by the other subscriber, and is transferred from the exchange 1 to the concentrator / distributor 7 via the digital subscriber line 5 _1. As described above, the voice signal of the called subscriber is transferred to the digital multi-function telephone (DKT) 4 _B via the digital telephone line 6 _B to allow the user to listen.

Next, the exchange 1 is connected to the digital subscriber line 5 ₂
When an incoming call to the call occurs, the call setting message from the exchange 1 is sent via the digital subscriber circuit (DLC) 14 ₂ and the digital subscriber line 5 ₂ to the concentrator / distributor 7
Transferred to.

The concentrator / distributor 7 is a digital subscriber line 5
Similarly to the case where the incoming call to ₁ occurs, when it is determined as the call setup message, the association data 7416
If it is recognized that the digital subscriber line 5 ₂ is independently connected to the digital telephone line 6 _C , the call setup message for the digital multifunction telephone (DKT) 4 _C is edited and the digital telephone line 6 _{C is referred to.} Transfer to the digital multi-function telephone (DKT) 4 _C via the digital subscriber line 5 ₂ and the digital telephone line 6 _C.
And are independently connected by a switch unit (SW) 73.

Digital multifunction telephone (DKT) 4
_C receives the call setting message from the concentrator / distributor 7 and enters the incoming call display state. When the user responds, the response message is edited and transferred to the concentrator / distributor 7 via the digital telephone line 6 _C. ..

The concentrator / distributor 7 is a digital telephone line 6
_When the message arriving from _C is received and analyzed, and it is determined that it is a response message from the digital multi-function telephone (DKT) 4 _C , the association data 7416 is referred to,
When recognizing that the digital telephone line 6 _C is solely connected to the digital subscriber line 5 ₂ , the response message is edited and transferred to the exchange 1 via the digital subscriber line 5 ₂ .

As described above, the digital multi-function telephone (DKT) 4 _C responds to the incoming call from the exchange 1, and thereafter is transferred from the exchange 1 to the concentrator / distributor 7 via the digital subscriber line 5 _2. that audio signals via the digital telephone line 6 _C is transferred to the digital multi-function telephone (DKT) 4 _C is listened to by the user, also the digital telephone line 6 _C from the digital multifunction telephone (DKT) 4 _C user's voice signal to be transferred to the concentrator distributor 7 via is transferred to the exchange 1 via the digital subscriber line 5 _2, to listen to the remote subscriber.

Next, a digital multifunction telephone (DKT)
When the user of 4 _C makes a call, a call setting message is transferred from the digital multi-function telephone (DKT) 4 _C to the concentrator / distributor 7 via the digital telephone line 6 _C.

The concentrator / distributor 7 is a digital telephone line 6.
_When the message arriving from _C is received and analyzed, and it is determined that it is the call setting message from the digital multi-function telephone (DKT) 4 _C , the association data 7416 is referred to and the digital telephone line 6 _C is connected to the digital subscriber line 5 ₂
When it recognizes that it is independently connected to, the call setting message is edited and transferred to the exchange 1 via the digital subscriber line 5 ₂ , and the digital telephone line 6 _C and the digital subscriber line 5 ₂ are connected. The switch section (SW) 73 is used for single connection.

The exchange 1 executes a predetermined call setting process corresponding to the call setting message transferred from the concentrator / distributor 7, and when the called subscriber responds, the reply message is edited and the digital subscriber line 5 ₂ Concentration distribution device 7 via
Communicate to.

The concentrator / distributor 7 is a digital subscriber line 5
_When the message arriving from ₂ is received and analyzed, and it is judged as the response message from the digital subscriber line 5 ₂ , the association data 7416 is referred to, and the digital subscriber line 5 ₂ is independently connected to the digital telephone line 6 _C. When it recognizes this, it edits the response message and transfers it to the digital multi-function telephone (DKT) 4 _C via the digital telephone line 6 _C.

From the above, the digital multifunction telephone (D
The terminating subscriber has responded to the call from KT) 4 _C , and thereafter, the digital multifunction telephone (DKT) 4 _C
Concentration distribution device 7 via digital telephone line 6 _C from
The voice signal of each user is transferred to the exchange 1 via the digital subscriber line 5 ₂ so that the other subscriber can hear the voice signal, and the voice signal from the exchange 1 is collected via the digital subscriber line 5 _2. The voice signal transferred to the distribution device 7 is transferred to the digital multi-function telephone (DKT) 4 _C via the digital telephone line 6 _C and heard by the user.

The above connection state is illustrated in FIG. The multiple connection information in the association data 7416 can be updated at any time from any one of the digital multi-function telephones (DKT) 4 or the operation and maintenance console (not shown) of the exchange 1.

The line concentrator / distributor 7 is connected to each digital subscriber line 5 and each digital multi-function telephone (DKT) 4 in a multi-line connection [that is, a digital multi-function telephone (DKT)], as in the known button telephone apparatus. 4 is equipped with a line button and a line indicator light corresponding to each digital subscriber line 5, and any digital multi-function telephone (DK
When the user of T) 4 makes a call to the exchange 1 via the corresponding digital subscriber line 5 by operating an arbitrary line button and receives an incoming call from the exchange 1 to the digital subscriber line 5, Digital multifunction telephone (DKT) 4
The incoming call is displayed on the corresponding line indicator of the above, and the user of any digital multi-function telephone (DKT) 4 can respond to the corresponding digital subscriber line 5 by operating the line button corresponding to the incoming indicator. It is possible to provide the same service as the connection], and also to provide a service to internally exchange and connect the digital multi-function telephones (DKT) 4 to each other without passing through the exchange 1, like the known simple exchange telephone device. I am trying.

Hereinafter, an example of multi-line connection and digital multi-function telephone interconnection by the line concentrator / distributor 7 will be sequentially described. First, in the association data 7416 provided in the control unit (CTL) 74 of the line concentrator / distributor 7, the digital multifunction telephone (DKT) is included.
Information indicating that 4 _A , 4 _B and 4 _C and the digital subscriber lines 5 ₁ and 5 ₂ are multi-line connected is stored in advance in any one of the digital multi-function telephones (DKT) 4 or the exchange 1. It is assumed that the settings are made from an operation and maintenance console (not shown).

In such a state, digitally join the exchange 1.
Work line 5₁When an incoming call to the
Setting message is Digital Subscriber Circuit (DLC)
14 ₁And digital subscriber line 5₁Concentrated segment via
It is transferred to the distribution device 7.

The concentrator / distributor 7 is a digital subscriber line 5
_When the message arriving from ₁ is received and analyzed, and it is determined that the message is a call setup message from the digital subscriber line 5 ₁ , the association data 7416 is referred to, and the digital subscriber line 5 ₁ uses the digital multifunction telephone (DKT) 4 _A ,
When it recognizes that it is multi-line connected to 4 _B and 4 _C , it edits the call setup message and, through the digital telephone lines 6 _A , 6 _B and 6 _C , a digital multifunction telephone (DKT) 4 _A , 4 and transfers the _B and 4 _C.

Digital multi-function telephone (DKT) 4 _A ,
4 _B and 4 _C, by being forwarded a message for call setting from the respective concentrator distributor 7, the indicator corresponding to each digital subscriber line 5 ₁ and incoming display state, any digital multi-function telephone (DKT ) 4 [for example, a digital multi-function telephone (DKT) 4 _A ] responds by operating the line button corresponding to the digital subscriber line 5 ₁ , edits the response message, and the digital telephone line 6
Transfer to the line concentrator / distributor 7 via _A.

The concentrator / distributor 7 is a digital telephone line 6.
Receives and analyzes messages arriving from _A , digital multi-function telephone (DKT) 4 _A to digital subscriber line 5
_When it is determined that the response message is for ₁ , the association data 7416 is referred to, and when it is recognized that the digital multi-function telephones (DKT) 4 _A , 4 _B and 4 _C are multi-line connected to the digital subscriber line 5 ₁ ,
The reply message is edited and transferred to the exchange 1 via the digital subscriber line 5 _1, and the digital telephone line 6 _A
Switch unit (SW) 73 between the digital subscriber line 5 ₁ and the digital subscriber line 5 _1.
And a digital multi-function telephone (DK
T) Edit the message indicating that the digital subscriber line 5 ₁ is in use by the line indicator lights corresponding to each digital subscriber line 5 ₁ provided in 4 _A , 4 _B and 4 _C, and Each digital multifunction telephone (DKT) 4 _A , 4 _B via telephone lines 6 _A , 6 _B and 6 _C
And transfer to 4 _C.

The digital multi-function telephones (DKT) 4 _A and 4 _B are respectively transferred from the concentrator / distributor 7 with a message for displaying the digital subscriber line 5 ₁ in the busy state, so that each digital subscriber line 5 1 Set the indicator corresponding to ₁ to the in-use display state.

As described above, the digital multi-function telephone (DKT) 4 _A responds to the incoming call from the exchange 1, and thereafter is transferred from the exchange 1 to the concentrator / distributor 7 via the digital subscriber line 5 _1. that audio signal via the digital telephone line 6 _a is transferred to the digital multi-function telephone (DKT) 4 _a is listening to the user, also the digital telephone line 6 _a from the digital multifunction telephone (DKT) 4 _a The voice signal of the user, which is transferred to the line concentrator / distributor 7 via the digital subscriber line 5 ₁ , is transferred to the exchange 1 to be heard by the other subscriber.

Next, an arbitrary digital multifunction telephone (D
KT) 4 (for example, digital multi-function telephone (DKT) 4
_When the user _A ) operates the line button corresponding to the digital subscriber line 5 ₁ to make a call after confirming that the line indicator light corresponding to the digital subscriber line 5 ₁ is in the empty display state, _A call setup message is transferred from the digital multi-function telephone (DKT) 4 _A to the line concentrator / distributor 7 via the digital telephone line 6 _A.

The concentrator / distributor 7 is a digital telephone line 6
_AReceive and analyze messages arriving from
Multifunctional telephone (DKT) 4_ATo digital subscriber line 5
₁If the message is a call setup message to the
Refer to Microsoft Data 7416 to refer to digital multifunction telephones.
(DKT) 4_AIs a digital subscriber line 5₁To multi-ray
Connection is recognized, the call setup message
Edit the digital subscriber line 5₁Exchange via
Transfer to 1 and digital telephone line 6_AAnd digital
Subscriber line 5₁And is connected by the switch unit (SW) 73
In addition, a digital multi-function telephone (DKT) 4_AFour
_BAnd 4_CEach digital subscriber line 5 equipped with₁Against
Connect the corresponding line indicator to the digital subscriber line 5₁Is in use
Edit the message that indicates that
Digital telephone line 6_A, 6_BAnd 6 _CEach via
Digital Digital Telephone (DKT) 4_AFour_BAnd 4_CTo
Forward.

The exchange 1 executes a predetermined call setup process corresponding to the call setup message transferred from the concentrator / distributor 7, and when the called subscriber responds, edits the response message and edits the digital subscriber line 5 _1. Concentration distribution device 7 via
Communicate to.

The concentrator / distributor 7 is a digital subscriber line 5
_When the message arriving from ₁ is received and analyzed, and it is determined that it is a response message from the digital subscriber line 5 ₁ , the association data 7416 is referred to, and the digital subscriber line 5 ₁ is connected to the digital multi-function telephone (DKT) 4 _A. When the line connection is recognized, the response message is edited and transferred to the digital multi-function telephone (DKT) 4 _A via the digital telephone line 6 _A.

As described above, the digital multifunction telephone (D
The terminating subscriber has responded to the call from KT) 4 _A. Thereafter, the digital multifunction telephone (DKT) 4 _A
From the digital telephone line 6 _A to the concentrator / distributor 7
The voice signal of the user, which is transferred to, is transferred to the exchange ₁ via the digital subscriber line 5 ₁ to be heard by the other subscriber, and is also concentrated and distributed from the exchange 1 via the digital subscriber line 5 _1. The voice signal of the other subscriber transferred to the device 7 is transferred to the digital multi-function telephone (DKT) 4 _A via the digital telephone line 6 _A so that the user can listen to it.

Next, the controller (CTL) of the line concentrator / distributor 7.
74 provided association data 7416
In addition, each digital multi-function telephone (DKT) 4 _A , 4 _B and 4 _C connected to the concentrator / distributor 7 is followed by a predetermined special number followed by each digital multi-function telephone (DK
T) When the dedicated numbers within the concentrator / distributor 7 assigned to 4 _A , 4 _B, and 4 _C are selected, it indicates a state in which interconnection is possible via the concentrator / distributor 7 without going through the exchange 1. Information is digital multi-function telephone (DKT) in advance
4 or from the operation / maintenance console (not shown) of the exchange 1 or the like.

In such a state, an arbitrary digital multifunction telephone (DKT) 4 (for example, a digital multifunction telephone (D
_A user of KT) 4 _A ) makes a call to another digital multi-function telephone (DKT) 4 (for example, digital multi-function telephone (DKT) 4 _B ) accommodated in the concentrator / distributor 7.
If the special number for interconnecting via the line concentrator / distributor 7 and the dedicated number in the line concentrator / distributor 7 assigned to the digital multi-function telephone (DKT) 4 _B are selected, the digital multi-function telephone (DKT) 4 _A is selected. Digital telephone line 6 _A
The call setting message for connecting to the digital multi-function telephone (DKT) 4 _B is transferred to the line distribution device 7 via the line distribution device 7.

The concentrator / distributor 7 is a digital telephone line 6.
_The message arriving from _A is associated data 7
416, the call setting message is edited, and if it is determined that the call setting message is for receiving and analyzing, and connecting to the digital multi-function telephone (DKT) 4 _B via the concentrator / distributor 7. Transfer to the digital multi-function telephone (DKT) 4 _B via the telephone line 6 _B.

Digital multifunction telephone (DKT) 4
_B receives the call setting message from the concentrator / distributor 7 and enters the incoming call display state. When the user answers, the response message is edited and transferred to the concentrator / distributor 7 via the digital telephone line 6 _B. ..

The concentrator / distributor 7 is a digital telephone line 6.
_When the message arriving from _{B is} received and analyzed by referring to the association data 7416 and it is determined that it is the response message from the digital multi-function telephone (DKT) 4 _B , the response message is edited and the digital telephone line 6 _A
Via the digital multi-function telephone (DKT) 4 _A , and the digital multi-function telephone (DKT) 4 A
The _A and 4 _B are connected by the switch unit (SW) 73.

As described above, the digital multifunction telephone (D
The digital multi-function telephone (DKT) 4 _B responds to the call from the KT) 4 _A , and thereafter the digital multi-function telephone (DKT) 4 _A sends the digital telephone line 6
The voice signal of the user transferred to the concentrator / distributor 7 via _A is transferred to the digital multi-function telephone (DKT) 4 _B via the digital telephone line 6 _B so that the user can listen to the signal. The voice signal of the user transferred from the multi-function telephone (DKT) 4 _B to the concentrator / distributor 7 via the digital telephone line 6 _B is the digital telephone line 6 _A.
The data is transferred to the digital multi-function telephone (DKT) 4 _A via the telephone to be heard by the user. The above connection state is illustrated in FIG. 4, and the digital multi-function telephones (DKT) 4 _A and 4 _B housed in the line concentrator 7 are connected without passing through the exchange 1.

As is apparent from the above description, according to this embodiment, two digital multifunction telephones (DKT) 4 _{A are used.}
5 and 4 _B operate in the same way as the analog telephone 2 in FIG. 5 is connected to _one digital subscriber line 5 ₁ by multiple connections, and the digital subscriber line 5 ₁ is reduced to one. In addition, the resources of the exchange 1 such as the accommodation terminals of the digital subscriber circuit (DLC) 14 and the network (NW) 11 are also saved.

A digitizer housed in the line concentrator / distributor 7.
Multi-function telephone (DKT) 4_AFour _BAnd 4_CThe collection
Digital subscriber line accommodating the line distribution device 7 in the exchange 1.
5₁And 5₂As well as the multi-line connection to
It becomes possible to operate and is further housed in the concentrator / distributor 7.
Digital multifunction telephone (DKT) 4_AAnd 4
_BThe concentrator / distributor 7 without mutual passage through the exchange 1.
Can be connected to each other via
The load is reduced.

2 to 4 are merely embodiments of the present invention, and the number of digital subscriber lines and the number of digital multifunction telephones accommodated in the concentrator / distributor 7 are limited to those shown in the drawings. However, many other modifications can be considered, but in any case, the effect of the present invention does not change. Needless to say, the internal configuration of the line concentrator / distributor 7 is not limited to that shown in the figure.

[0075]

As described above, according to the present invention, a plurality of digital multi function telephones are accommodated in the exchange by the digital subscriber lines which are less than the total number of the digital multi function telephones. It is possible to realize the same usage pattern as that when multiple digital multi-function telephones are connected to one digital subscriber line by multiple connections. It is possible for the multi-function telephone to directly specify a plurality of digital subscriber lines to make and receive calls, or to connect the digital multi-function telephones to each other within the concentrator / distributor, which is convenient for the digital multi-function telephone. Also improves.

[Brief description of drawings]

FIG. 1 is a diagram showing the principle of the present invention.

FIG. 2 is a diagram showing a concentrator / distributor according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of the multiple connection in FIG.

FIG. 4 is a diagram showing an example of telephone interconnection in FIG.

FIG. 5 is a diagram showing an example of multiple connection of an analog telephone.

FIG. 6 is a diagram showing an example of a conventional digital multi-function telephone connection method.

[Explanation of symbols]

 1 Switch 2 Analog Telephone 3 Analog Subscriber Line 4 Digital Multifunctional Telephone (DKT) 5 Digital Subscriber Line 6 Digital Telephone Line 7 Concentrator / Distributor 11 Network (NW) 12 Central Controller (CC) 13 Analog Subscriber Circuit (ALC) ) 14 digital subscriber circuit (DLC) 71 exchange side line section (CCT) 72 telephone side line section (CCT) 73 switch section (SW) 74 control section (CTL) 100 multiple connection means 741 terminal information receiving section 742, 7412 terminal State analysis unit 743, 7413 Reception information analysis unit 744 Line capture processing unit 745, 7415 Command processing unit 746 Terminal event editing unit 7411 Line information reception unit 7416 Association data

Claims (4)

[Claims] 1. Digital multifunction telephone (4), respectively
Is connected to the exchange (1) by a plurality of digital subscriber lines (5) connecting the switch to the exchange (1), and is connected to a larger number of the digital multifunction telephones (4) than the digital subscriber lines (5). And a signal to be transmitted from the exchange (1) via the predetermined digital subscriber line (5) to the concentrator / divider (7). A plurality of digital multi-function telephones (4) to be transferred, and the signals transmitted from the predetermined plurality of digital multi-function telephones (4) are mixed, and the predetermined digital subscribers are mixed. A multi-function telephone connection system, characterized in that a dual connection means (100) for transferring to the exchange (1) via a line (5) is provided. 2. The double connection means (100) combines a combination of the predetermined digital subscriber line (5) and a plurality of predetermined digital multifunction telephones (4) with the digital multi-function telephone (4). 2. The multi-function telephone connection system according to claim 1, wherein setting and updating are performed based on a command transmitted from at least one of the functional telephone (4) and the exchange (1). 3. The concentrator / distributor (7) receives an incoming call transmitted from the exchange (1) via the optional digital subscriber line (5), and the optional digital multifunction telephone (4). Designates the incoming digital subscriber line (5) to make it available for response, and the exchange (1 ), The multi-function telephone connection system according to claim 1. 4. The line concentrator / distributor (7) is accommodated in the line concentrator / distributor (7) by making a call from any of the digital multifunction telephones (4) and executing a predetermined selection operation. 2. The multi-function telephone connection system according to claim 1, wherein the selected other multi-function telephone (4) can be connected without going through the exchange (1).