JPS61216556A - Response displaying system - Google Patents

Abstract

PURPOSE:To prevent starting of communication in a stage in which only one set of communication channels are set by displaying an response of called terminal to a caller when response signals for two sets of calls are sent back from a digital integrated communication network to a terminal equipment that performs two sets of calls to utilize two sets of communication channels collectively. CONSTITUTION:When a terminal equipment 4 performs composite communication by voice and image with a terminal equipment 5, the terminal equipment 4 sends out a SETUP (V) signal for voice to set a communication channel for voice, and sends out a SETUP (I) signal to set a communication channel for image to a digital integrated communication network 1. At the same time, the terminal equipment 4 confirms that it is a call to utilize two sets of communication channels collectively, and when a called party made an response, starts counting functions of the number of CONNECT signals sent back from the digital integrated communication network 1. Then, after receiving the two sets of CONNECT signals from the digital integrated communication network 1, the response is displayed on the caller. Accordingly, starting of composite communication by the caller when only one communication channel is set can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a response display method when a plurality (for example, two sets) of communication paths are used at once in a digital integrated communication network.

In a digital integrated communication network, multiple communication channels are set up on subscriber lines, making it possible to carry out multiple communications in parallel.

In such a digital integrated communication network, for example, two sets of communication channels are set up between complex terminal devices that can transmit and receive audio and video in parallel, and a service that uses the two communication channels simultaneously (multiple communication) becomes possible. Note that within the digital integrated communication network, since these two sets of communication paths are set up by two sets of independent calls, consideration must be given to avoid setting up calls that are inconvenient for composite communication.

[Conventional technology]

FIG. 3 is a diagram showing an example of a digital integrated communication network to which the present invention is applied, and FIG. 4 is a diagram showing an example of the conventional signal transmission/reception process in FIG.

In FIG. 3, subscriber lines 2 and 3 accommodated in the digital integrated communication network 1 can set up two sets of communication paths. Furthermore, the terminal device 4 connected to the subscriber line 2 and the terminal device 5 connected to the subscriber line 3 are terminal devices capable of combined voice and video communication, and the terminal device 6 is a terminal device capable of communicating only by voice. It shall be a device.

In FIGS. 3 and 4, the terminal device 4 is connected to the terminal device 5.
In order to perform composite communication using audio and video, first set up the audio communication path using the audio 5ETUP (V).
5 for video to set up the signal and then the video communication path.
ETUP (1) Sends a signal to the digital integrated communication network l. The digital integrated communication network 1 transmits the audio 5ETUP (V) signal and then the video 5ETUP (I) signal to the terminal devices 5 and 6 via the subscriber line 3.

RELEASE C0MPLE indicates non-conformity because terminal device 6 is incapable of composite communication using audio and video.
The call is terminated by returning the TE signal, and only the terminal device 5 sends the audio 5ETUP (V) signal and the video 5ETUP (
r) In response to the signal, an audio ALERT (V) signal and a video ALERT (1) signal are returned, and an incoming call is displayed to the called party.

The digital integrated communication network 1 receives the audio ALERT (V) signal and the video ALERT (V) signal returned from the terminal device 5.
(I) Transmit the signal to the terminal device 4.

The called party answers, and the terminal device 5 sends the voice C0NNECT.
(V) Signal and video C0NECT (1) When the signal is returned to the digital integrated communication network l, the digital integrated communication network l receives the audio C0NECT returned from the terminal device 5.
CT (V) C0NNECT (I) for signal and video
The signal is transmitted to the terminal device 4, and the audio C0NNECT ACKNOWLEDGE (
V) C0NNECT ACKNOW for signal and video
LEDGE (1) Returns the signal. As described above, an audio communication path and a video communication path are set between the terminal devices 4 and 5. The terminal device 4 is a C0NNECT for audio.
When either the (V) signal or the video C0NNECT (I) signal is received, it is displayed to the calling party that the called terminal device 5 has responded. In response to the response display, the calling party starts a composite communication using audio and video from the terminal device 4 to the terminal device 5.

[Problem that the invention seeks to solve]

As is clear from the above explanation, in a conventional response display method, the terminal device 4 that has made a call to perform composite communication using audio and video receives the C0NNECT (V) signal for audio or the C0NNECT (1) signal for video. When either one is returned, a response is immediately displayed to the calling party, and a composite communication using audio and video is started.

However, in the digital integrated communication network 1, 5ET for voice
Since calls using the UP (V) signal and the video 5ETtJP (1) signal are processed independently of each other, for example, even if the setting of the video communication channel is delayed compared to the audio communication channel,
Since the terminal device 4 immediately displays the called party's response upon receiving the voice C0NNECT (V) signal, composite communication is started before the video communication channel has been set up, and communication without video is started. There is a problem with this being done.

[Means for solving problems]

The present invention solves the above problems by taking the following measures.

That is, in the present invention, when a terminal device connected to a subscriber line makes multiple calls in order to use multiple communication channels at once, all response signals for the multiple calls are received from the digital integrated communication network. The called party response is then displayed to the calling party.

[Effect]

That is, according to the present invention, a terminal device that has made multiple calls to perform composite communication does not issue a response from the called terminal device for the first time when response signals for the multiple calls are returned from the digital integrated communication network. In order to display this information to the calling party, communication is prevented from starting when only one set of communication channels has been set.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a response display method according to an embodiment of the present invention, and FIG. 2 is a diagram showing an example of the signal transmission and reception process in FIG. 1. The target digital integrated communication network is shown in Figure 3.

1 and 2, the terminal device 4 is the terminal device 5.
In order to perform composite communication using audio and video, first set up the audio communication path using the audio 5ETUP (V).
5 for video to set up the signal and then the video communication path.
In addition to sending the ETUP (T) signal to the digital integrated communication network l, it is confirmed that the call uses two sets of communication channels at once (Steps S1 and S2 in Figure 1), and the digital integrated communication network is used when the called party responds. C0N returned from communication network 1
Activate the function to count the number of NECT signals (step S3)
. The digital integrated communication network 1 sends a voice 5ETUP (V) signal to the terminal devices 5 and 6 via the subscriber line 3.
A video 5ETUP (1) signal is transmitted at Vt'i'.

Since the terminal device 6 is incapable of composite communication using audio and video, RELEAS2 COMPL- indicates non-conformity.
The call is terminated by returning the ETE signal, and only the terminal device 5 sends the 5ETUP (V) signal for audio and 5ETUP for video.
(1) In response to the signal, an audio ALERT (V) signal and a video ALERT (1) signal are returned, and an incoming call is displayed to the called party. The digital integrated communication network 1 transmits the audio ALERT (V) signal and the video ALERT (1) signal returned from the terminal device 5 to the terminal device 4. C0N for audio
NECT (V) Signal and video C0NNECT (
1) When the signal is returned to the digital integrated communication network 1, the digital integrated communication network transmits the C0NNECT (V) signal for voice and C0NNEC for video returned from the terminal bag f5.
The T(I) signal is transmitted to the terminal device 4, and the audio C0NNECT ACKNOWLED is transmitted to the terminal device 5.
GE (V) C0NNECT AC for signal and video
KNOWLEDGE (1) An audio communication path and a video communication path are set up between the terminal devices 4 and 5 by 0 or more that return a signal. The terminal device 4 detects that two sets of C0NNECT signals have been returned within a predetermined period of time.
When counted by the NNECT signal counting function (step S
4 and S5), indicating that the called party has answered (step 36). The response display prompts the caller to call the terminal device 4.
Then, composite communication using audio and video is started with respect to the terminal device 5.

In the digital integrated communication network 1, for example, if the setting of a video communication channel is delayed and two sets of C0NNECT signals cannot be received by the terminal device 4 within a predetermined period of time, the setting of a composite communication call is delayed. It is determined that this is not possible, and the call is disconnected (step S7).

As is clear from the above description, according to the present embodiment, when the calling terminal device 4 makes a call that uses two sets of communication channels at once, the calling terminal device 4 connects the two sets of C0NN from the digital integrated communication 1i11.
Since a response is displayed to the caller for the first time after receiving the ECT signal, the caller is prevented from starting composite communication with only one communication channel set.

It should be noted that FIGS. 1 to 3 are only one embodiment of the present invention, and for example, the target digital integrated communication network is not limited to that shown in the figures, and many other modifications may be considered. However, the effects of the present invention remain the same in either case.

Further, the number of communication channels to be used at once is not limited to two, and many variations beyond 3&l1 are considered, but the effects of the present invention remain the same in any case.

〔Effect of the invention〕

As described above, according to the present invention, in the digital integrated communication network, a terminal device that has issued two sets of calls in order to collectively use two sets of communication channels receives response signals for the two sets of calls from the digital integrated communication network. Since the response of the called terminal device is displayed to the caller for the first time when the call is returned, communication is prevented from starting when only one set of communication channels has been set.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a response display method according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of the signal transmission/reception process in FIG. 1, and FIG. 3 is a diagram showing an example of the signal transmission/reception process in FIG. FIG. 4 is a diagram showing an example of the conventional signal transmission/reception process in FIG. 3. In the figure, 1 is a digital integrated communication network, 2 and 3 are subscriber lines, 4.5 and 6 are terminal devices, and S1 to S7 are steps. Well 1 Prisoner 2 Zucha 3 Day l/j
4 series 4 mortar

Claims (1)

[Claims] In a digital integrated communication network in which a plurality of communication channels can be set up on a subscriber line, a terminal device connected to the subscriber line issues multiple calls in order to collectively use the plurality of communication channels, and the digital integrated communication A response display method characterized in that a called party response is displayed after all response signals for the plurality of calls are received from a network.