JPH0810890B2 - Digital terminal - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital terminal, and more particularly to a digital terminal having a calling unit that initiates a call in response to an incoming call message from a line network.

2. Description of the Related Art Conventionally, when this type of digital terminal determines that it can perform communication specified by the information in the incoming call message when receiving an incoming call from the network, it sends a call start message to the network and immediately starts calling. Was.

Therefore, a conventional digital terminal has a digital subscriber line with a bus structure, sends an incoming call message in a broadcast format to all terminals on the bus when receiving a call, and performs communication specified by the information in the incoming call message. A network that uses a procedure in which only available communication terminals send a call initiation message to the network to initiate a call (for example, a service integrated digital network defined in the I series recommendation of the International Telegraph and Telephone Consultative Committee (CCITT) ( When connecting to ISDN)}, there may be a plurality of communicable terminals, and in that case, the plurality of terminals simultaneously started calling. However, even if a user tries to answer a call by giving priority to a specific terminal or a specific responder, the conventional digital terminal does not have the function.

OBJECT OF THE INVENTION It is an object of the present invention to provide a digital terminal which can initiate a call by prioritizing a particular terminal or a particular respondent.

The digital terminal according to the present invention is a digital terminal having a call control unit which sends out call information after a fixed time in response to communication information from the network, and priority information indicating whether the own terminal has priority or non-priority. And a call control means for controlling the call information to be sent after a predetermined time from the fixed time when the held priority information indicates non-priority. .

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

FIG. 1 is a system diagram showing the configuration of an embodiment of a digital terminal according to the present invention. In the figure, a digital terminal according to an embodiment of the present invention shows two communication channels A and B.
And a home bus 1 (for example, CC
It is connected to the ITT recommended ISDN user / network interface basic interface), and includes a home bus interface unit 2, a signal transmitting / receiving unit 3, a control unit 4, a key input unit 5, and a terminal-specific function unit 6. , Display unit 7 and calling unit 8
It is configured to include and.

The in-home bus 1 is connected to the in-home bus interface unit 2. The in-home bus interface unit 2 performs multiplexing and demultiplexing between the in-home bus 1 and the communication channel and the signal channel, and the signal channel S is connected to the signal transmitting / receiving unit 3. The communication channels A and B are connected to the terminal-specific function unit 6. The signal transmitting / receiving unit 3 and the terminal-specific function unit 6 are connected to the control unit 4.

The key input unit 5, the display unit 7, and the calling unit 8 are the control unit 4.
Connected to. Here, the terminal-specific function unit 6 is a general term for functional blocks unique to individual terminals such as a pixel reading unit, an encoding unit, and a printer unit of a facsimile terminal. When the key input unit 5 is included in the terminal-specific function unit 6, the key input unit 5 can be shared with it. Also, the display unit 7 can be shared with the display unit 7 when the display unit 7 is included in the terminal-specific function unit 6.

The signal from the network is sent using the signal channel S on the home bus 1. The signal channel S is separated by the home bus interface unit 2 and the signal is extracted by the signal transmitting / receiving unit 3. The extracted signal is sent to the control unit 4. vice versa,
When the control unit 4 sends a signal to the network, the control unit 4 sends a signal to the signal transmitting / receiving unit 3, the signal transmitting / receiving unit 3 converts the signal into a signal format to be sent to the network, and sends the signal to the in-home bus interface unit 2. In the home bus interface unit 2, the call channel A
And B and are sent to the signal channel S on the home bus 1.

The control unit 4 includes an initial setting control unit 41 and an incoming call control unit 42, the initial setting control unit 41 includes a call control information control unit 43,
The incoming call control unit 42 includes a calling control unit 44.

The initial setting control unit 41 is activated by a power ON signal from a power source (not shown) or a reset key ON signal from the key input unit 5. The incoming call control unit 42 is activated when the control unit 4 receives a signal from the network according to the above-described signal flow.
The call control information control unit 43 is activated during the operation when the initialization control unit 41 is activated. The call control unit 44 may be activated in its operation when the call control unit 42 is activated.

Next, referring to FIG. 2, the call control unit 43 at the time of initial setting
Will be described. In the figure, when the initial setting control unit 41 receives a power ON signal from a power supply unit (not shown) or a reset key ON signal from the key input unit 5, a call control information control unit
43 is always activated (step 21). The call control information control section 43 sends a display signal to the display section 7 inviting the user to input whether to select the call start priority / non-priority for a certain communication service (step 22). The information selected by the user is input from the key input unit 5 to the call control information control unit 43 (step 23). The call control information control unit 43 stores this information in the control unit 4 as call start priority / non-priority designation information (step 24). The above operation is repeated for the number of types K of all communication services provided by the network (steps 25 → 26 → 22).

Further, the operation when the incoming call control unit 42 receives an incoming call message from the network will be described with reference to FIG. In the figure, when the incoming call control unit 42 receives an incoming call message from the network, the incoming call control unit 42 performs communication specified by the information in the incoming call message (for example, designation of telephone / FAX, circuit switching / packet switching). It is determined whether or not (designation, etc.) can be performed, and if so, a response start message is sent to the network and the call control unit 44 is activated (step 31). The response start message is sent to the signal channel S on the home bus 1 according to the signal flow described above.
The activated call control unit 44 refers to the call start priority / non-priority designation information accumulated in the control unit 4 at the time of initialization by the call control information control unit 43 in the above-described procedure (step 32). Immediately, a call start signal is sent to the calling section 8 (steps 33 → 35), and if non-priority is designated, a call start signal is sent to the calling section 8 after waiting for a predetermined time (steps 33 → 34 → 35). ).

Therefore, when a plurality of terminals are connected to the in-home bus 1, the priority-designated terminal first starts the call, and after a certain time, the non-priority-designated terminal starts the call. If the designated terminal responds (for example, the user picks up the handset) before the fixed time elapses, the call to the non-prioritized terminal does not start even after the fixed time elapses. As a result, the terminal designated by the user with priority can respond in priority.

When the terminal of the present invention and the conventional terminal coexist on the in-home bus 1, the conventional terminal operates in the same manner as when the terminal of the present invention is prioritized, so that there is no operational problem. The user may use the conventional terminal by regarding it as the priority designation.

EFFECTS OF THE INVENTION As described above, according to the present invention, since it is possible for the user to prioritize and respond to a terminal which is prioritized by the user, which is not possible with the conventional terminal, the telephone reception in the office or at home is possible. There is an effect that the person can be specified and the telephone answering place can be specified, and the environment can be improved because an unnecessary ringing tone is not emitted.

[Brief description of drawings]

FIG. 1 is a system diagram showing a configuration of a digital terminal according to an embodiment of the present invention, FIG. 2 is a flow chart showing an operation of a call control unit of a digital terminal according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. Incoming call control unit 42 of digital terminal
6 is a flowchart showing the operation of the first embodiment. Explanation of main part code 3 …… Signal transmitter / receiver 4 …… Control unit 8 …… Calling unit 41 …… Initial setting control unit 42 …… Incoming call control unit 43 …… Call control information control unit 44 …… Call control unit

Claims (1)

[Claims] 1. A digital terminal having a call control unit for transmitting call information after a fixed time in response to communication information from a network, and holding means for holding priority information indicating whether the own terminal has priority or non-priority. And a call control means for controlling the call information to be sent after a predetermined time from the fixed time when the held priority information indicates non-priority.