JP2864131B2 - Home device having call waiting means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to an in-home device having call waiting means connected to an integrated service digital communication network, and arbitrarily performs call waiting regardless of the state of providing a call waiting service in the integrated service digital communication network. A call that is connected to an exchange through a subscriber line having a plurality of communication channels and controls a terminal of a communication call through each communication channel with the purpose of enabling the use of the service and the selection of use or non-use. In a home device having a waiting means, the call waiting means has a function of registering the presence or absence of setting of a call waiting service in response to a request from the terminal; and New call arrived via communication channel If the call waiting service has been set, a function to identify whether or not the call waiting service has been set, and if the call waiting service has been set, notify the terminal of a new incoming call and, based on a response instruction from the terminal to the new incoming call, A function of placing a call in communication on hold and connecting a call via the other communication channel to the terminal; and if the call waiting service is not set, the exchange cannot respond to the new incoming call. And a function of sending a message to the exchange so as to notify that

[Industrial applications]

The present invention relates to a home device having a call waiting means accommodated by a basic interface in an integrated service digital communication network.

A so-called basic interface having two sets of communication channels and one set of control channels as a standard interface of in-home equipment accommodated in an integrated services digital communication network (ISDN) has been proposed by the International Telegraph and Telephone Consultative Committee. (CCITT).

On the other hand, a so-called call that notifies a communicating subscriber that a new call has arrived, and temporarily suspends the communicating call and responds to the new incoming call by operating the receiving subscriber during the communication. Waiting services are in practical use.

[Conventional technology]

FIG. 4 is a diagram showing an example of a conventional call waiting method.

In FIG. 4, the central processing unit (C
P) 12 includes a call waiting control unit (CW) 121 for providing a call waiting service to the subscriber 2.
And a call waiting registration unit 122 for registering and placing a subscriber (for example, 2-2) using the call waiting service.

Now, subscribers 2-1 and 2-2 accommodated in automatic exchange 1
While the other subscribers 2 accommodated in the automatic exchange 1
-3 receives a call from the subscriber 2-2, the automatic exchange 1
The central processing unit (CP) 12 refers to the call waiting registration unit 122 provided in the central processing unit (CP) 12, and the call waiting registration information cw is associated with the called subscriber 2-2. When the registration is detected, the call waiting control unit (CW) 121 is activated.

Activated call waiting control unit (CW) 121
Notifies the communicating subscriber 2-2 of the arrival of a new call by a known method, and notifies the notified subscriber 2
-2 performs a predetermined operation (for example, hooking) in order to answer the incoming call during a call. When the operation of the subscriber 2-2 is detected, the call waiting control unit (CW) 121 detects the operation of the subscriber 2-2.
Is the subscriber 2 set in the network (NW) 11
Pending communication path p ₁ and -1, sends back the holding tone to the subscriber 2-1, a communication channel to a network (NW) 11
Set p _2, and responsive to the subscriber 2-3 subscribers 2-2.

Thereafter, when the subscriber 2-2 executes a predetermined operation for the repetitive response, the call waiting control unit (CW) 121 causes the communication path p being set in the network (NW) 11 to be set.
₂ pending return the holding tone to the subscriber 2-3 presently communicating, to allow re-response to the subscriber 2-1 sets a communication path p ₁ presently pending.

[Problems to be solved by the invention]

As is clear from the above description, in the conventional call waiting method, in order to provide the call waiting service to the accommodation subscriber 2-2, the automatic exchange 1
It is necessary to provide a call waiting control unit (CW) 121 and a call waiting registration unit 122, and to register a subscriber 2-2 desiring to provide a call waiting service in the call waiting registration unit 122. Was unable to use the call waiting service.

The present invention relates to an integrated service digital communication network,
It is an object of the present invention to enable a subscriber not only to freely use a call waiting service irrespective of a service provision state of an integrated service digital communication network but also to select whether or not to use the call waiting service.

[Means for solving the problem]

According to the present invention, as shown in the principle diagram of FIG. 1, the object of the present invention is to provide a call waiting means which is connected to an exchange by a subscriber line having a plurality of communication channels and controls a terminal of a communication call through each communication channel. In the in-home device, the call waiting means has a function of registering presence / absence of setting of a call waiting service in response to a request from the terminal, and a function of registering another communication channel with the terminal communicating through a communication channel. A function for identifying the presence or absence of the setting of the call waiting service when there is a new incoming call, and a notification of a new incoming call to the terminal when the call waiting service is set. A call in communication is put on hold based on a response instruction to a A function for connecting a call via a mobile phone to the terminal, and, when the call waiting service is not set, sending a message to the exchange so that the exchange cannot respond to the new incoming call. This is achieved by a home device having a call waiting means.

[Action]

The call waiting means 300 according to the present invention enables the user of the home device 200 to freely use the call waiting service and select whether or not to use the call waiting service. When a new incoming call is received via the other communication channel during communication via one communication channel, the user of the home device 200 is notified of the incoming call. By performing a response operation to an incoming call, a call currently being communicated via one communication channel is put on hold, and a new incoming call via the other communication channel can be answered.

However, if the subscriber of the home device has not set up the call waiting service by the call waiting means, the incoming call from another communication channel will not be notified to the user and the message sending function that cannot respond will operate. Then, by sending a message to the exchange, the exchange notifies that it cannot respond to a new incoming call.

As described above, according to the present invention, even when the integrated services digital communication network does not provide the call waiting service, the user can freely use the call waiting service by providing the home device with the call waiting means, In the means, it is possible to select whether the call waiting service is set or not, so that the degree of freedom of the user to use the call waiting service is further increased, and the convenience of the integrated service digital communication network is further improved.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Second
FIG. 3 is a diagram illustrating a call waiting method according to an embodiment of the present invention, and FIG. 3 is a diagram illustrating a call waiting service providing process in FIG. In addition,
The same reference numerals indicate the same objects throughout the drawings.

2, the ISDN exchange 3 is shown as the integrated service digital communication network 100 in FIG. 1, and the terminal adapter 5 is shown as the home device 200 in FIG.
And a terminal device 6-1. As the call waiting means 300 in FIG.
A key (K) 55 as a function for registering the presence or absence of the setting of the signal sound source 53, the indicator (L) 54 and the call waiting service is provided in the terminal adapter 5, and a function of identifying the presence or absence of the setting of the call waiting service. The protocol analysis conversion unit 523 and the input / output control unit 525
However, as a function of connecting to the terminal, the switch control unit 524
A call waiting control unit (CW) 526 is provided in the interface conversion unit 52.

Terminal adapter 5, the subscriber line comprising the two sets of communication channels B ₁ and B _2, and a set of control channel D 7
And is accommodated in the ISDN exchange 3 via a so-called basic interface with the ISDN exchange 3.

In FIGS. 2 and 3, when the user of the terminal device 6-1 desires to use the call waiting service, the key (K) 55 is set to the operating state and set.

In this state, the terminal device 6-1 via the communication channel B _1, other subscribers are accommodated in ISDN exchange 3 4
-1 and the communicating and the communication channel B ₂ is referred to as being unused.

In such a case, in the terminal adapter 5, the switch control unit 524 in the interface conversion unit 52 sets a communication path q ₁ in the simple switch 51, the terminal device 6-1 BO
Through RSCHT portion 521 is connected to the communication channel B ₁ (FIG. 3 (a)).

In this state, when a call to the terminal device 6-1 is received from another subscriber 4-2 accommodated in the ISDN converter 3,
ISDN switching system 3 captures a communication channel B ₂ in the idle state leading to the called terminal device 6-1, the terminal adapter 5 via the control channel D, and transmits a call setup message SETUP (FIG. 3 (b )).

In the terminal adapter 5, when the protocol analysis conversion unit 523 in the interface conversion unit 52 receives the call setup message SETUP transmitted via the control channel D, it analyzes the idle / busy state of the terminal device 6-1. If the terminal device 6-1 identifies that communication is in progress, it further analyzes the state of the key (K) 55 via the input / output control unit 525, and if it identifies that the key (K) 55 is set to the operating state, the call is made. The waiting control unit (CW) 526 is activated.

Activated Call Waiting Control (CW) 526
Flashes the indicator lamp (L) 54 via the input / output control unit 525 to notify the user of the terminal device 6-1 that a new call has been received, and to control the ISDN exchange via the control channel D. Then, a calling message ALERT is returned to 3. (FIG. 3 (c)).

When the user who notices the blinking of the indicator light (L) 54 performs a predetermined operation for answering a new incoming call, for example, a hooking operation on the terminal device 6-1, the call waiting control unit (CW) 526 detects the hooking manipulation of the terminal device 6-1 via the BORSCHT portion 521 and the BORSCHT control unit 522 controls the switch control unit 524, temporarily releasing the configured channel q ₁ in the simple switch 51 Communication channel
Set q _2, a melody indicating the pending signal source 53 is generated, via a communication channel B ₁ and ISDN switch 3 is returned to the subscriber 4-1, the channel q ₃ further in the simple switch 51 together to connect the communication channel B ₂ and the terminal device 6-1 by setting, to the ISDN exchange 3 via the control channel D, and returns a response message cONNECT.

Upon receiving the response message CONNECT, the ISDN exchange 3
Connecting the subscriber 4-2 to the communication channel B _2.

Terminal 6-1 by the above, the communication channel B ₂ and
It becomes possible to respond to the subscriber 4-2 via the ISDN exchange 3. Meanwhile subscriber 4-1, listens to the melody to indicate the hold state returned over the communications channel B ₁ and ISDN switch 3 from the signal source 53 to乍Ra waits (FIG. 3 (d)).

The terminal device 6-1 which has completed the correspondence for the subscriber 4-2.
User resumes communication with the subscriber 4-1 again, and performs a predetermined operation for a repeated response, for example, a hooking operation on the terminal device 6-1. Then, the call waiting control unit (CW) 526 is the BORSCHT part 521 and B
Detecting the hooking operation of the terminal device 6-1 via the ORSCHT control unit 522 controls the switch control unit 524, a communication path q ₄ to temporarily release the communication path q ₃ already set in the simple switch 51
Set, a melody indicating the pending signal source 53 is generated, is returned via the communication channel B ₂ and ISDN exchange 3 to the subscriber 4-2, further communication channel within a simple switch 51
q ₁ is set again (FIG. 3 (e)).

Terminal 6-1 by the above, the communication channel B ₁ and
The communication with the subscriber 4-1 can be resumed via the ISDN exchange 3. Meanwhile subscriber 4-2, listens to the melody to indicate the hold state returned over the communications channel B ₂ and ISDN switch 3 from the signal source 53 to乍Ra waits (FIG. 3 (e)).

On the other hand, if the user of the terminal device 6-1 does not want to use the call waiting service, the key (K) 55
Is set to the recovery state, when the terminal device 6-1 is communicating with the subscriber 4-1 and an incoming call is received from the subscriber 4-2, the protocol analysis conversion unit 523 sets the key (K) 55 When the state is analyzed and it is determined that the key (K) 55 is set to the recovery state, the ISDN is transmitted from the protocol analysis conversion unit 523 via the control channel D without activating the call waiting control unit (CW) 526. Disconnect message DIS to exchange 3
Return C.

The ISDN exchange 3 that has received the disconnection message DISC notifies the subscriber 4-2 to the terminal device 6-1 that the call cannot be set up by a known procedure.

As is apparent from the above description, according to the present embodiment, the simple switch 51, the signal sound source 53,
Indicator light (L) 54, key (K) 55, switch control unit 524,
I / O control unit 525 and call waiting control unit (C
W) By providing 526, regardless of ISDN exchange 3,
It is possible to provide the terminal device 6-1 with a call waiting service and to select whether to use the call waiting service.

FIGS. 2 and 3 are merely examples of the present invention. For example, the in-home device 200 incorporating the call waiting means 300 is not limited to the terminal adapter 5, but is connected to the subscriber line 7. Although many other variations are considered, such as a directly connectable terminal device or a private branch exchange, the effect of the present invention does not change in any case.

〔The invention's effect〕

As described above, according to the present invention, in the above-mentioned in-home device, not only the subscriber can freely use the call waiting service irrespective of the service provision state of the integrated service digital communication network, but also whether or not to use the call waiting service. Selection is also possible, and the convenience of the integrated service digital communication network is improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing a call waiting method according to an embodiment of the present invention, FIG. 3 is a diagram illustrating a call waiting service providing process in FIG. The figure shows an example of a conventional call waiting method. In the figure, 1 is an automatic exchange, 2-1 to 2-3, 4-
1 and 4-2 are subscribers, 3 is an ISDN exchange, 5 is a terminal adapter, 6-1 is a terminal device, 7 is a subscriber line, 11 is a network (NW), 12 is a central processing unit (CP), 51 Is a simple switch, 52 is an interface converter, 53 is a signal source, 54 is an indicator light (L), 55 is a key (K), 100 is an integrated service digital communication network, 121 and 526 are call waiting control units (CW), 122 is a call waiting registration unit, 200 is a home device, 300 is a call waiting means, 521 is a BORSCHT unit, 522 is a BORSCHT control unit, 523 is a protocol analysis conversion unit, 524 is a switch control unit, and 525 is an input / output control unit. Show.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H04M 3/42-3/58 H04M 11/00-11/10

Claims (1)

(57) [Claims] 1. An in-home device having call waiting means connected to an exchange via a subscriber line having a plurality of communication channels and controlling a terminal of a communication call via each communication channel, wherein the call waiting means comprises: A function for registering the presence or absence of the setting of a call waiting service in response to a request from the terminal, the terminal being in communication via a certain communication channel, if there is a new incoming call via another communication channel, A function for identifying the presence or absence of the setting of a call waiting service, and, when the call waiting service is set, notifying the terminal of a new incoming call, and performing communication based on a response instruction to the new incoming call from the terminal. A function of placing a call on hold and connecting a call via the other communication channel to the terminal; And a function of sending a message to the exchange so as to notify that the exchange cannot respond to the new incoming call when the call waiting service is not set. Home device having waiting means