JPH02134046A - Communication equipment - Google Patents

Abstract

PURPOSE:To attain communication in a specific group by including group identification information to an outgoing subaddress and allowing a called party to check the said information and to accept its incoming call only when the information is coincident. CONSTITUTION:In the case of selecting group communication by a group selection key 31 at calling, a call setting message added with an outgoing subaddress including the group identification information from a key input section 3 is generated and sent from a communication control section 6. Then in the case of the acceptance of an incoming call, when the group communication is selected, the received group identification information and the group identification information are compared and the incoming call is accepted only when the result of comparison shows the coincidence. Thus, the communication in a specific group is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication device connected to an I5DN.

[Prior Art] Conventionally, when a call is received from an ISDN, in order to identify one receiving terminal from terminals connected on the same bus,
This was done using the called subaddress information element included in the call setup message that notifies the incoming call.

[Problems to be Solved by the Invention] However, in the conventional example described above, the destination sub-address is used to select one terminal from among the terminals connected on the same bus, so when there is no destination sub-address, could not determine whether the call was to its own terminal. In addition, it was not possible to accept only incoming calls from within a specific group.

The present invention was made to solve the above problems, and
An object of the present invention is to provide a communication terminal device that can perform intra-group communication.

[Means for Solving the Problems] In order to achieve the above object, a communication device of the present invention has the following configuration. That is, in a communication device that receives a call setup message including a calling subaddress information element from an I SDN, there is a selection means for selecting whether or not to perform group communication, and when group communication is selected by the selection means, the group identification information is manually input. an input means for sending a call by adding the group identification information to the calling sub-address information element when the group communication is selected and a call is made; The apparatus includes a comparison means for comparing the group identification information and the group identification information input by the input means, and an incoming call reception means for accepting an incoming call only when the comparison result by the comparison means matches.

[Function] In the above configuration, when group communication is selected by the selection means when making a call, a call setting message is generated and sent to which a calling subaddress information element including group identification information from the manual means is added, and the call is sent. At the time of a call, if group communication is selected by the selection means, the received group identification information is compared with the group identification information input by the input means, and the incoming call is accepted only if the comparison results match. do.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Description of the device (Figures 1 and 2) Figure 1 is a block diagram of the 15DN telephone of this embodiment, where 1 is the CPU that controls the entire device, and 2 is where control programs, data, etc. are stored. A memory section, 3 a key input section for inputting dial numbers, etc., 4 a display section for displaying information etc. from the network, 5 a handset, and 6 a communication control section connected to the 15DN for call control, etc. be.

FIG. 2 is a diagram showing the configuration of the key human power section 3 in this embodiment. As shown in the figure, 31 is used to select whether or not to perform group communication, and group selection key 32 is used when group communication is selected. Registration key for registering the partner group number, 33
is a normal tenki.

FIG. 3 is a diagram showing an input sequence when a group number is input as group identification information.

FIG. 4 is a flowchart showing the reception process at the time of incoming call in this embodiment.

<Explanation of Group Identification Information (Fig. 3)> First, in this embodiment, when a user performs group communication, it is necessary to register a group number as group identification information. Here, this group number input sequence will be explained below with reference to FIG.

First, when the registration key 32 of the key manual section 3 described above is pressed in sequence S31, and then the group selection key 31 is pressed in sequence S32, internal processing is shifted to group number registration mode. Next, in sequence S33, the key (numeric keypad 33) corresponding to the group number is pressed to input the group number. This input group number is stored in the storage unit 2 as group identification information, and is referred to as the group number when a call is made or received, as will be described later. Then, when the registration key 32 is pressed again in sequence 34, the group number registration mode is ended and the process shifts to the normal processing mode.

When the user makes a call using group communication, the user first presses the group selection key 31 to select group communication, and then inputs the other party's number using the numeric keypad 33. Here, the CPU 1 recognizes that group communication has been selected by the group selection key 31, and includes the calling sub-address information element in the parameters of the call request primitive to the communication control unit 6, and includes the calling sub-address information element input in advance as the content. Indicate the selected group number. Then, the communication control unit 6 assembles a call setting message using the designated number.
Send to N.

Also, if the user only wishes to receive calls for group communication, the user can switch to group communication mode by pressing the group selection key 31 for selecting group communication and then pressing the registration key 32. After this setting, only incoming calls that match the group identification information (group number) input and stored earlier will be accepted.

<Description of Control Procedure (FIG. 4)> Next, the reception process at the time of incoming call in this embodiment will be explained below according to the flowchart shown in FIG.

In step S41, when the communication control unit 6 notifies the incoming call, the CPU 1 advances the process to step S42,
Check the destination subaddress, transmission capability, higher layer compatibility information elements, etc. of the received call setup message. And this consistency check is "OK".

In the case of "N", the process proceeds to step S43.
G'', the process advances to step S47.

In step S43, it is checked whether the above-mentioned group communication mode is selected, and if the communication mode is not selected, the process proceeds to step 346, where normal incoming call reception is performed. However, if the communication mode has been selected, in step S44, the presence or absence of a calling subaddress information element in the received call primitive is checked. As a result, if there is, proceed to step S45, and if not, proceed to step S47.
Proceed to. Then, in step S45, the group number stored in the storage unit 2 and the content of the originating subaddress information element are checked, and if they match, the process advances to step 346, and if they do not match, the process advances to step S47. In step S46, the incoming call reception for accepting the call sends a primitive to the communication control unit 6. On the other hand, step S47
Then, an incoming call rejection primitive for rejecting the call is sent to the communication control unit 6.

According to this embodiment, the calling subaddress includes group identification information, and the called side checks the information and accepts the incoming call only if it matches, thereby accepting unnecessary incoming calls from outside the group. There is an effect that there is no.

[Effects of the Invention] As described above, according to the present invention, only incoming calls from within a specific group can be accepted and communication can be performed.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the ISDN telephone in this embodiment, Fig. 2 is a diagram showing the configuration of the key input unit 3 in this embodiment, and Fig. 3 is a case in which a number is input as group identification information. FIG. 4 is a flowchart showing the reception process at the time of incoming call in this embodiment. In the figure, 1...CPU, 2...Storage unit, 3...Key power unit, 4...Display unit, 5...Handset, 6...
...Communication control unit, 31...Group selection key, 32.
...Registration key 33...This is a numeric keypad.

Claims (1)

[Scope of Claims] A communication device that receives a call setup message including a calling subaddress information element from an ISDN, comprising selection means for selecting whether or not to perform group communication, and a group identification when group communication is selected by the selection means. an input means for inputting information; a sending means for adding the group identification information to the calling sub-address information element and sending it when the group communication is selected and the call is made; The apparatus is characterized by comprising a comparison means for comparing the received group identification information with the group identification information obtained by the input means, and an incoming call acceptance means for accepting an incoming call only when the comparison result by the comparison means matches. communication equipment.