JPH04196856A - Personal identification number control incoming call connection system - Google Patents

Abstract

PURPOSE:To avoid a situation that incoming call connection service can not be executed owing to data area shortage and so on by executing the incoming call connection service to an incoming subscriber terminal when the personal identification number (ID) table of the incoming subscriber terminal is referred to and a number is coincident with the some of the ID number of corresponding to incoming call connecting service classifications. CONSTITUTION:The registering mechanism of an ID number to execute the selective control of incoming call connection service is provided on a subscriber terminal side and when the ID number is transmitted from a subscriber terminal 1 to a subscriber terminal 3 while a subscriber 3 is in a state in communication, it is decided whether the ID number is coincident with the some of PW1 to PWn of a ID number table 7 or not. When the ID number is not coincident with any of the ID numbers PW1 to PWn, the effect that it is impossible to connect is notified to a network and on the other hand, when the coincident ID number is present thereon data by service classifications stored as a pair in the ID number concerning to coincidence are notified to the network. Thus, the memory capacity shortage, etc., of an exchange in which the subscriber terminal is stored can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an 15DN exchange service, and particularly to a termination connection method for a subscriber terminal-based exchange service.

[Conventional technology]

Up to now, there is one method of this type, for example, the above-mentioned "caller-controlled termination connection method." According to this, when a call is received to a called subscriber who is unable to communicate with the calling subscriber due to a telephone call, etc., and the call is received by the automatic exchange that accommodates the called subscriber, In this case, the originating subscriber is notified by the exchange that it cannot connect to the terminating subscriber. If the PIN number sent from the calling subscriber based on this notification is found in the automatic exchange,
Refers to the PIN number registered in advance for the type of incoming call connection service in the subscriber data for the incoming subscriber, and only if it matches any of the PIN numbers and the communication connection service related to the match is permitted. A match-related incoming call connection service is provided to the incoming subscriber.

[Problem to be solved by the invention]

However, in the case of using the above technique, it is necessary to prepare in advance a data area for registering a personal identification number for each type of incoming connection service provided for subscribers as subscriber data on the exchange side.

On the exchange side, it is impossible to predict the number of data areas and the timing for the subscribers accommodated in the exchange to register their personal identification numbers for each type of incoming call connection service.

Each time a subscriber makes a request, a subscriber data area for registering a PIN number must be secured and the PIN number must be registered. However, a situation arises in which a data area for registering a password cannot be secured from the memory capacity provided in the exchange, and even if the service is requested, it cannot be carried out immediately. The purpose of the present invention is to provide a PIN registration mechanism on the subscriber terminal side for controlling the selection of incoming call connection services for each incoming subscriber. By performing verification on the subscriber terminal side with the password sent from the terminal, the purpose is to avoid a situation where incoming connection service cannot be provided due to lack of data area for registering the password on the exchange side.

[Means to solve the problem]

The above purpose is to enable sending and receiving of signals even during a call by using an interface between the 15DN exchange and the subscriber terminal via a digitized communication network. By providing support for each incoming call connection service type, when a call is received to a called subscriber terminal that is unable to communicate with the calling subscriber due to the called subscriber terminal being on a call, etc. In this case, the originating subscriber's terminal is notified by the exchange that it cannot connect to the terminating subscriber's terminal, but the PIN number sent from the originating subscriber's terminal based on this notification is sent to I. When the PIN code from the calling subscriber terminal is received via the interface, the PIN number from the calling subscriber terminal is transferred to the receiving subscriber terminal by referring to the PIN table registered in advance on the receiving subscriber terminal side. This is achieved by notifying the exchange side of the incoming call connection service related to -M only when the password matches one of the passwords provided for each type of connection service.

[Effect]

A password registration mechanism for controlling the selection of incoming call connection services is provided on the subscriber terminal side, so that necessary passwords can be registered in advance in the subscriber terminal.

This eliminates the problem of insufficient memory capacity of the exchange in which the subscriber terminal is accommodated.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 shows a flowchart of an algorithm for verifying a personal identification number at a subscriber terminal according to the present invention.

FIG. 2 shows a table of PIN numbers registered in the subscriber terminal. FIG. 3 shows an outline of a network to which an embodiment of the present invention is applied.

First, an overview of the network according to the present invention will be explained. FIG. 3 shows an example thereof. As shown in the figure, in this example, subscriber terminal 3 and subscriber terminal 5 are in a state of communication via networks 4 and 6, and in this state, subscriber terminal 1 requests connection to subscriber terminal 3. The situation is as expected. When subscriber terminal 1 transmits call connection information 1a to request connection to subscriber terminal 3, network 2 identifies that subscriber terminal 3 is accommodated in network 4, and sends the call connection information 1a to subscriber terminal 3. The information is relayed to the network 4.

In the network 4, it is possible to know that the call is incoming to the subscriber terminal 3 from the call connection information. The network 4 transmits the call connection information to the subscriber terminal 3.

First, the subscriber terminal 3 checks whether there is a free line. If there is a vacant line, normal incoming call connection processing is performed to connect subscriber terminal 3 and subscriber 1.

Furthermore, if there is no idle line, a line busy signal 1b is sent to the subscriber terminal 1. Upon receiving this line busy signal, the subscriber terminal 1 sends a PIN code IC compatible with a certain incoming connection service to the subscriber terminal 3 via the networks 2 and 4, if necessary. It is determined whether or not to make an incoming call connection based on the PIN number and the PIN number table compatible with subscriber terminal 3.1 When making an incoming call connection, the process for making that incoming connection is now executed. A series of processing steps will be described later with reference to FIG.

FIG. 2 shows a list of password numbers registered in the subscriber terminal 3. PIN number table 7 is PIN number PWI~P
W n , and furthermore, the service type data 5IDI to 5IDn corresponding to the personal identification numbers PWI to PWn are stored in association with each other. When receiving a call to the subscriber terminal 3, the incoming call connection control is performed by referring to the password table only when a password is sent from the subscriber terminal 1.

Now, in FIG. 1, we will explain the processing flow assuming that the PIN number is sent from subscriber terminal 1 to subscriber terminal 3 while subscriber terminal 3 is in the communication state. According to the following.

That is, the PIN sent from the subscriber terminal 1 is received (processing step 8), and the PIN is stored in the PIN table PWI.
-PWn is determined (processing step 9). PIN number PWI~PW
If it does not match any of n, it is notified that connection to the network is not possible (processing step 11). On the other hand, if there is a matching password, the service type data stored as a pair with the matching password is notified to the network. In the network, a series of call processing controls are performed based on the incoming call connection service type data notified from the subscriber terminal.

〔Effect of the invention〕

As explained above, according to the present invention, by transmitting and receiving signal information between the subscriber terminal and the network using the interface in the I5DN network, it is possible to transmit and receive signals during a call. It is now possible to store data on the service type that corresponds to the PIN number compatible with subscriber terminals on the subscriber terminal side, which not only saves the memory of the exchange, but also makes it possible to change the PIN number by processing only on the terminal side. .

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a PIN verification algorithm in a subscriber terminal according to the present invention, FIG. 2 is a diagram showing a PIN registration table provided in a subscriber terminal according to the present invention, and FIG. 3 is a diagram showing the PIN code registration table according to the present invention. FIG. 2 is a diagram showing the relationship between subscriber terminals and a switching network according to FIG. 1.3.5...Subscriber terminal, 2.4.6...Network, 7...Password table, 1a-Call connection information signal, 1b...Line busy signal, 1c.Password number . Summary 1 Figure

Claims (1)

[Claims] 1. In an ISDN that accommodates a wide variety of subscriber terminal equipment, by pre-registering a PIN number on the receiving subscriber terminal side, it is impossible to communicate with the calling subscriber terminal for reasons such as telephone calls. When a call arrives at a terminating subscriber terminal in the state, the originating subscriber terminal is notified by the exchange that it cannot connect to the terminating subscriber terminal, and then the outgoing call is sent based on the notification. If the PIN from the subscriber terminal is on the receiving subscriber terminal, refer to the PIN table of the receiving subscriber terminal, and a match will be made only if it matches one of the PINs corresponding to the type of incoming connection service. 1. A PIN number-controlled incoming call connection system, characterized in that the incoming call connection service relating to the above is provided to the incoming subscriber terminal.