JP2690347B2 - How to set up network services - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a digital terminal connected to a digital network and capable of receiving various services from the network, and sets service settings for receiving the service to the network. It relates to the setting method to be performed.

[Conventional technology]

Now, at CCITT (International Telegraph and Telephone Advisory Committee),
Digital subscriber line signaling (I interface) has been standardized. In such an I interface, a plurality of terminals (digital telephone A, digital telephone B) are bus-connected on one interface bus, as shown in FIG. 7 which is an explanatory diagram of a configuration example of a subscriber system in the I interface. It is possible, and more specifically, it is possible to connect up to eight terminals to one interface bus.

Then, in the I interface, the device (terminal) in communication is put on hold for communication and temporarily disconnected from the network (bus),
It is possible to carry out a device movement service during communication such as moving to another room and connecting to a network (bus) again to resume communication held until then.

Further, in addition to basic connection control signals, there is an additional service in which the terminal side receives a certain kind of service by registering in the network (for example, a telephone having an answering machine function on the network side). Number service etc.). When the terminal side executes and stops the additional service with respect to the network, control is performed by using one type of service control signal as shown in FIG.

FIG. 8 is a chart showing the control means of the supplementary service. Referring to FIG.

It is assumed that the additional service is currently stopped on the network side. On the other hand, the digital terminal side wants to receive the additional service, and therefore performs the additional service control operation and sends the service control signal to the network. The network which received this changes the state from the state where the supplementary service is stopped to the state where the supplementary service is being executed, and sends a notification signal indicating that the supplementary service is being executed to the terminal side.

Next, when it is desired to stop the supplementary service on the terminal side, the supplementary service control operation is also performed, and the same service control signal as that transmitted when the supplementary service is received first is transmitted to the network side. Then, the network side, upon receiving it, changes the state from the execution of the supplementary service until then to the suspension of the supplementary service, and sends a notification signal indicating that the supplementary service is being suspended to the terminal side. In this way, the control of execution and stop of the additional service performed from the terminal side to the network side is performed in a toggle manner using the same one type of service control signal.

[Problems to be solved by the invention]

Therefore, on the terminal side, in order to always be able to determine whether the network side is executing the supplementary service requested by the terminal side or being stopped, the above-mentioned notification signal sent from the network side Since it is possible to know whether the network side is executing or stopped, the fact may be stored and displayed.

However, in the I interface, as described above, as many as eight terminals may be connected to one interface bus. In this case, if there is a power outage, power will be supplied from other auxiliary power sources during that time, but due to the power supply capacity etc., power will be supplied to all eight terminals and all eight terminals will be utilized. Nothing can be done, for example, if there are two of them, power can be supplied to only two, and the remaining six cannot operate due to a power failure.

In this case, if either of the two terminals being fed sends a service control signal to the network side to change the service status (running or stopped) on the network side, it becomes inoperable. The existing terminal cannot cope with this, and the network status display becomes confusing.

Similarly, of the eight terminals, while one terminal is moving by applying the device movement service during communication (while it is out of the network), another terminal services the network side. When a control signal is sent to change the service status (running or stopped) on the network side, the terminal while the device is moving cannot respond to this status change on the network side, and the network status display also goes wrong. Come on.

For this reason, in a terminal in which the network status display is confused due to the above-mentioned circumstances, an operator who does not know such a situation sees "the network side is out of service" when looking at the display means. When the service control signal was sent to the network side in an attempt to execute the service, the network side was actually in the "service in progress" state until then, and the service control signal was received. In some cases, the state of "stopped" may occur, resulting in a result contrary to the operator's intention.

One way to avoid such an inconvenience is to use the terminal that has become inoperable due to a power failure at the time of power recovery immediately after that, and the terminal that receives the service of moving the device during communication at the time of network connection immediately after that. There is also a method of inquiring the network side about the state of the network side and displaying the current state of the network side correctly on the display means, but do not leave the terminal always powered on, in other words frequently. In a terminal where a power failure occurs, inquiries about the status are frequently made, which causes a new problem that the control scale of the terminal increases and the load on the network side also increases.

The present invention, in a network service setting method for requesting the setting of a service from a digital terminal connected to a digital network, does not result in a result contrary to the operator's intention and the control scale of the terminal is increased. It is an object of the present invention to provide a network service setting method that can solve the above-mentioned problems without increasing the load on the network side.

[Means for solving the problem]

In order to achieve the above object, the present invention is connected to a digital network and sends or receives one type of service control signal to the network to execute or stop the service on the network side for the service received from the network. Each time the control signal is sent, control is performed by alternately repeating the toggle method, and whether the network is in the service execution state or the service stop state due to the network receiving the control signal, In the digital terminal adapted to receive the notification signal indicating, the display means for storing and displaying the notification signal indicating whether the service is being executed from the network or the service is stopped Equipped with.

[Action]

When the service control signal is transmitted from the digital terminal to the network and the notification signal from the network to the network is received, the contents displayed on the display means by then,
When the contents of the notification signal notified from the network are compared and if they do not match, the contents displayed on the display means are corrected so as to match the contents of the notification signal, and if they match, the service control signal is again sent to the network. Send to.

〔Example〕

First, a configuration example of a digital telephone as a digital terminal used for implementing the present invention will be described with reference to FIG.

In FIG. 2, 1 is the synchronization of digital signals with the network,
An interface circuit for assembling / disassembling a digital information signal and a control signal, 2 is a codec for converting a digital information signal to an analog signal and an analog signal is a digital information signal, 3 is a communication circuit, 4 is a handset for transmitting and receiving, 5 is a control circuit for controlling connection with the network, 6 is a dial, 7 is a control key for requesting additional service,
Reference numeral 8 indicates a display indicating whether the additional service is being executed / stopped, 9 is a memory for storing the execution / stop of the additional service displayed on the display 8, and 10 is a power source for each circuit of the digital telephone. It is a power circuit.

FIG. 1 is a flowchart showing an operation flow executed by the control circuit 5 in the digital telephone shown in FIG. 2 when the present invention is carried out.

With respect to the flowchart of FIG. 1, it is considered that the meaning thereof can be easily understood only by referring to it, so no special explanation will be added.

The operation according to the flowchart of FIG. 1 will be described in detail below with reference to FIGS. 3 to 6.

Here, in the state of the telephone immediately after the power is turned on, it is assumed that the memory 9 and the display 8 are in the initial state and the additional service is stopped. It is also assumed that the network is out of service.

(A) First, the operation of requesting the start of the supplementary service will be described.

Here, the operation of performing the request operation from the telephone A of FIG. 7 will be described.

 FIG. 3 shows an example of a signal sequence with the network.

When the operator A presses the control key (7a) of the telephone A,
The control circuit (5a) sends a service control signal to the interface circuit (1a). The service control signal is converted into a digital signal by the interface circuit (1a) and transmitted to the network. When the network receives the service control signal, it is in the process of executing the supplementary service.
A notification signal indicating that the supplementary service is being executed is transmitted. The notification signal is sent via the interface circuit (1a) to the control circuit (5
transmitted to a). Upon receiving the notification signal, the control circuit (5a) confirms the content. In this case, since the content of the notification signal is "execution in progress" and the memory (9a) and the display (8a) are "stopped", the control circuit (5a) is
Corrected the contents of a) to "Executing", and further display (8a)
Change the display of to "Running".

On the other hand, the notification signal is similarly transmitted to the telephone B, and the control circuit (5b) of the telephone B sets the content of the memory (9b) to "execution", and further displays the display (8b) to "execution". Change.

By the above operation, the state of the supplementary service becomes "execution" in the telephones A and B on the bus, and the operator A can confirm the execution.

(B) Next, the operation of requesting stop of the additional service will be described.

 FIG. 4 shows an example of a signal sequence with the network.

When the operator A presses the control key (7a) on the telephone A while the telephones A and B are displaying "execution" while the network is executing the supplementary service by the operation of the above explanation (a), the control is performed. The circuit (5a) sends a service control signal to the interface circuit (1a). The service control signal is converted into a digital signal by the interface circuit (1a) and transmitted to the network. When the network receives the service control signal, the additional service is stopped, and a notification signal indicating that the additional service is stopped is sent to the bus in which the telephone A is accommodated. The notification signal is transmitted to the control circuit (5a) through the interface circuit (1a). Upon receiving the notification signal, the control circuit (5a) confirms the content. In this case, the content of the notification signal is "stopped", and the memory (9a) and display (8a)
Since "is being executed", the control circuit (5a) changes the content of the memory (9a) to "stopped" and further changes the display on the display unit (8a) to "stopped".

On the other hand, the notification signal is similarly transmitted to the telephone set B, and the control circuit (5b) of the telephone set B sets the content of the memory (9b) to "stopped" and the display of the display unit (8b) to "stopped". Change.

(C) Next, the operation when the state mismatch occurs between the network and the telephone will be described.

 FIG. 5 shows an example of a signal sequence with the network.

Here, according to the above description (a), it is assumed that, in the state where the supplementary service is stopped, the telephone set B makes a supplementary service start request during the power failure.

During a power failure of the telephone set B, the operator A presses the control key (7a) to request an additional service from the telephone set A as shown in the above description (a). After this control circuit (5a)
Operates in the same way as in (a) above, and the network
A notification signal indicating that the supplementary service is being executed is transmitted. At this time, the display (8a) on the telephone A is the same as the above description (a).
Is displayed, but the telephone B does not display it because of a power failure.

After that, even if the power failure of the telephone B is recovered and the power is turned on, the display is in the initial state of "stopped", and the state of the telephone B is inconsistent with the network.

Although an example in which the telephone set B is in a power failure is shown here, when the telephone set B is disconnected from the bus due to movement of the device during communication, the notification signal cannot be received and the mismatch occurs.

(D) Next, the state mismatch recovery operation will be described.

 FIG. 6 shows an example of a signal sequence with the network.

According to the above explanation (c), the network is executing additional services,
Operator B when telephone B is in the state where additional services are stopped
Looking at the display (8b) of the telephone B to start the supplementary service (the operator B believes that the supplementary service is stopped because the display (8b) is "stopped"), and the control key (7b ) Is pressed. The control circuit (5b) sends a service control signal to the interface circuit (1b). The service control signal is converted into a digital signal by the interface circuit (1b) and transmitted to the network. When the network receives the service control signal, the supplementary service is stopped, and a notification signal indicating that the supplementary service is stopped is sent to the bus. The notification signal is sent to the control circuit (5b) through the interface circuit (1b).
Is transmitted to The control circuit (5b) receives the notification signal and confirms the content. In this case, the content of the notification signal is "stopped" and the memory (9b) and display (8b) are "stopped", so the control circuit (5b) has a state mismatch with the network. Determine what you are doing. Therefore, the control circuit (5b) again sends the service control signal to the network.
Upon receiving the service control signal, the network is in the process of executing the supplementary service, and sends a notification signal indicating that the supplementary service is being executed to the bus. The control circuit (5b) receives the notification signal and confirms the content. In this case, since the content of the notification signal is "in execution" and the memory (9b) and the display (8b) are "stopped", the control circuit (5b) changes the content of the memory (9b) to " “Running”, and the display on the display (8b) is changed to “Running”.

On the other hand, the telephone set A receives the notification signal from the network twice, but displays the finally received “execution in progress”.

With the above operation, the service settings are not accidentally changed.

[4] As described above, according to the present invention, when the state mismatch between the network and the terminal (telephone) is detected, a control signal is transmitted so that the terminal side shifts to a desired state. The state of the network and the terminal side are automatically matched, and the state is changed to the state expected by the operator, so the service control operability is good. The control is performed only when an additional service request is made. The advantage is that the control / processing load does not increase.

[Brief description of the drawings]

FIG. 1 is a flow chart showing an operation flow of a control circuit when the present invention is carried out, FIG. 2 is a block diagram showing a configuration example of a digital telephone used when the present invention is carried out, and FIG. 3 is a service start request sequence when the present invention is carried out. 4 and 5 are the same service stop request sequence diagram, FIG. 5 is the same service request sequence diagram when the telephone set B is out of power, and FIG. 6 is the service control sequence diagram of the telephone set B in which the same state mismatch occurs. FIG. 7 is an explanatory view of a configuration example of a subscriber system in the I interface, and FIG. 8 is a chart showing a control procedure of additional services. Explanation of symbols 1 ... Interface circuit, 2 ... Codec, 3 ...
Call circuit, 4 ... Handset, 5 ... Control circuit, 6 ...
… Dial, 7 …… Control key, 8 …… Display, 9 …… Memory, 10 …… Power circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yutaka Nishino 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-60-224363 (JP, A)

Claims (1)

(57) [Claims] 1. A control signal, which is connected to a digital network and sends or receives one type of service control signal to the network, thereby executing or stopping a service on the network side for a service received from the network. Control is performed by alternately repeating the toggle type every time, and from the network, a notification signal indicating whether the network is in the service execution state or the service stop state by receiving the control signal is sent. Upon receiving the notification signal indicating whether the digital terminal is set to receive the service from the network or the service is stopped from the network, the digital terminal is provided with a display means for storing and displaying the notification signal. When the digital terminal sends a service control signal to the network and a notification signal from the network is received, the display means is provided by then. And what was displayed in
If the contents of the notification signal notified from the network are compared and they do not match, the contents displayed on the display means are corrected so as to match the contents of the notification signal, and if the results of the comparison match, the service control is performed again. A method for setting a network service, which is characterized in that a signal is transmitted to the network.