JPH05236155A - Digital terminal equipment - Google Patents

Abstract

PURPOSE:To consider the priority of a terminal equipment with respect to a simultaneous incoming call by setting a delay time of each terminal equipment to delay incoming call reception processing. CONSTITUTION:An initial setting control section 41 sets a delay time starting incoming call reception processing to each terminal equipment 9. An incoming call control section 42 is started when a signal from a network is received by a control section 4 and when the incoming call control section 42 receives an incoming call message from a network, it is discriminated that its own terminal equipment 9 accommodated in a terminal adaptor 6 is able to perform communication specified with an information in an incoming call message and when the communication is enabled, a delay control section 44 is started. The delay control section 44 refers the delay time designation information stored in the control section 4 at the initial setting to discriminate whether the delay time is designated or not and in the case of designation of the delay time, after lapse of the delay time designated from the reception of the incoming call message, the call start message is returned to the network and the call start signal is sent. The call start message is sent to a signal channel on a subscriber's bus according to the signal flow.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used for ISDN digital communication. In particular, it relates to a priority setting technique for ISDN terminals that respond to an incoming call.

[0002]

2. Description of the Related Art Generally, when an ISDN terminal device determines that a terminal accommodated therein upon receiving a call from the network can carry out communication specified by information in an incoming call message,
Immediately, a call start message was sent to the network, and the call of the terminal was immediately started.

[0003]

Such a digital terminal has a digital subscriber line having a bus structure, and when an incoming call is received, an incoming call message is sent in a broadcast format to all terminals on the bus. When only a communicable terminal capable of performing communication specified by information sends a call initiation message to the network and is connected to an ISDN network using a procedure for initiating a call, there may be a plurality of communicable terminals, In that case, the terminals simultaneously initiate a call. However, it has been impossible for ISDN subscribers to prioritize a specific terminal or group of terminals.

The present invention has been made under such circumstances, and an object of the present invention is to provide a digital terminal device in which an ISDN subscriber can consider the priority of terminals for simultaneous incoming calls.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a plurality of terminals that perform digital communication through an ISDN network, a terminal adapter to which the terminals are connected, and a control unit for controlling calls of the terminals connected to the terminal adapter. In the digital terminal device having the home bus interface for connecting the terminal and the ISDN network, the control unit includes means for setting a delay time for starting the incoming call acceptance processing for each terminal, and means for setting the delay time. Means for storing the set value,
It is characterized in that a means for delaying the incoming call acceptance processing of each terminal is provided with reference to the storing means.

[0006]

The signal from the network is sent using the signal channel. The signaling channel is sent to the controller. The incoming call control unit is activated when the control unit receives a signal from the network. When the incoming call control unit receives an incoming call message from the network, it judges whether or not its own terminal accommodated in the terminal adapter can perform the communication specified by the information in the incoming call message, and if so, the delay control Start the department.

The activated delay control unit refers to the delay time value designation information accumulated in the control unit at the time of initial setting, and determines whether the delay time value is designated or not designated. When the delay time value is designated, the call start message is returned to the network and the call start signal is transmitted after the specified delay time has elapsed since the incoming call message was received. The call initiation message is sent to the signaling channel on the home bus according to this signal flow.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the device of the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention.

According to the present invention, a plurality of terminals 9 for performing digital communication by the ISDN network, a terminal adapter 6 to which the terminals 9 are connected, and a control unit 4 for controlling a call of the terminals connected to the terminal adapter 6 are provided. , Terminal 9 and ISDN
In the digital terminal device provided with the home bus interface 2 for connecting the network, the control unit 4 has an initial setting control unit 41 as a unit for setting a delay time for starting the incoming call acceptance processing for each terminal 9, and this setting. Delay time value information control section 43 as a means for storing the value set by the means for
And a delay control section 44 as a means for delaying the incoming call acceptance processing of each terminal 9 with reference to the delay time value information control section 43.

The home bus 1 is a home bus interface 2
The home bus interface 2 is connected to the home bus 1
And the communication channels B1 and B2 and the signal channel D are multiplexed and separated, the signal channel D is connected to the signal transmitting / receiving unit 3, and the communication channels B1 and B2 are connected to the terminal adapter 6. The signal transmitting / receiving unit 3 and the terminal adapter 6 are connected to the control unit 4. The key input unit 5, the display unit 7, and the calling unit 8 are connected to the control unit 4.

The signal from the network is sent using the signal channel D on the home bus 1. The signal channel D is separated by the home bus interface 2, and the signal is extracted by the signal transmitting / receiving unit 3. The extracted signal is sent to the control unit 4. Conversely, when the control unit 4 sends a signal to the network, the control unit 4
Transmits a signal to the signal transmitting / receiving unit 3, is converted into a signal format to be transmitted to the network in the signal transmitting / receiving unit 3, and is transmitted to the in-home bus interface 2. The home bus interface 2 multiplexes with the call channels B1 and B2 and sends them to the signal channel D on the home bus 1. The control unit 4 uses the initial setting control unit 41.
And an incoming call control unit 42, the initial setting control unit 41 includes a delay time value information control unit 43, and the incoming call control unit 42 includes a delay 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. 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 delay time value information control unit 43 is activated during its operation when the initialization control unit 41 is activated. The delay control unit 44 is activated in the operation when the call control unit 42 is activated.

First, the operation at the time of initial setting will be described. The initial setting control unit 41 uses a power source O from a power source unit (not shown).
When the N signal or the reset key ON signal from the key input unit 5 is received, the delay time value information control unit 43 is activated.

The operation of the delay time value information control unit 43 will be described with reference to FIG. FIG. 2 is a flowchart showing the operation of the delay time value information control unit 43.

In FIG. 2, the delay time value information control unit 43
Sends to the display unit 7 a display signal inviting the ISDN subscriber to input the delay time value of the operation for an incoming call for a certain communication service. The information designated by the ISDN subscriber is input from the key input unit 5 to the delay time value information control unit 43. The delay time value information control unit 43 stores this value in the control unit 4 as delay time value designation information when this information includes the delay time value, and when the information does not include the delay time value, indicates that fact. It is stored in the control unit 4 as designated information. This is repeated for all communication services provided by the network.

Next, the operation when the incoming call control unit 42 receives an incoming call message from the network will be described.

When the incoming call control unit 42 receives an incoming call message from the network, the incoming call control unit 42 performs communication designated by the information in the incoming call message, for example, designation of telephone / FAX, circuit switching / packet switching. It is determined whether designation or the like can be performed, and if it is possible, the delay control unit 44 is activated.

The operation of the delay control section 44 will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the delay control unit 44.

The activated delay control unit 44 refers to the delay time value designation information accumulated in the control unit 4 at the time of initialization by the delay time value information control unit 43, and determines whether the delay time value is designated or not designated. To judge. When the delay time value is specified, after the specified delay time has elapsed since the incoming call message was received,
The call start message is returned to the network and the call start signal of the terminal 9 is sent to the calling unit 8. The call start message is sent to the signal channel D on the home bus 1 according to this signal flow.

[0020]

The ISDN subscriber can prioritize the incoming call acceptance processing of a plurality of terminals connected to the same home bus. For example, by giving top priority to the incoming call acceptance process of the most familiar terminal, it is possible to prevent a situation in which a distant terminal accepts an incoming call first even though the familiar terminal is available. ..

[Brief description of drawings]

FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a delay time value information control unit.

FIG. 3 is a flowchart showing an operation of a delay control unit.

[Explanation of symbols]

 1 Home Bus 2 Home Bus Interface 3 Signal Transmission / Reception Section 4 Control Section 5 Key Input Section 6 Terminal Adapter 7 Display Section 8 Calling Section 9 Terminal 41 Initial Setting Control Section 42 Incoming Call Control Section 43 Delay Time Value Information Control Section 44 Delay Control Section B1, B2 Call channel D Signal channel

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04M 1/00 F 7117-5K

Claims (1)

[Claims] 1. A plurality of terminals that perform digital communication through an ISDN network, a terminal adapter to which this terminal is connected, a control unit that controls calls of the terminal connected to this terminal adapter, and the terminal and the ISDN network. In a digital terminal device provided with an in-home bus interface to be connected, the control unit means for setting a delay time for starting an incoming call acceptance process in each terminal, and means for storing the value set by the setting means. And a means for delaying an incoming call acceptance process of each terminal by referring to the storing means.