FI111499B - A method for assigning a call connection request to a subscriber line to a desired entity - Google Patents

Description

111499

A method for assigning a call connection request to a subscriber line to a desired entity

The invention relates to a method according to the preamble of claim 1 for assigning a call connection request to a particular subscriber line to a desired party.

Such methods are used in environments where the subscriber line of a telephone network has multiple users. These methods are used to direct a call to a subscriber line so that it is answered by a desired party and no one else.

One method of prior art for assigning a call to a subscriber line under consideration to a desired party may be implemented by a "specified ring" defined for national subscriber functions. This feature enables the sending of user-specific dialing rates to a receiving subscriber line in connection with a call-connecting request, whereby the correct party is able to answer the telephone based on the dialing rate used. In such solutions, the receiving exchange's local exchange is able to send the desired call rate to the receiving subscriber based on the multiple numbering or redialing of the receiving subscriber.

A drawback of the prior art is that there is no effective means of limiting the presence of an unauthorized party in the vicinity of the terminal connected to the local loop. 20 ways to answer an incoming call. This is problematic in circumstances where at least some of those in the vicinity of the subscriber line want to hide the identity or other identity of the calling subscriber. A problem with the prior art of allocating a call to a particular entity based on user-specific dialing rates is that only four 25 subscriber numbers per subscription are available to determine the user-specific dialing rates and they are not sufficient for all usage needs.

The object of the invention is to provide a completely new type of method for targeting a call connection request to a subscriber line to a desired party, by means of which it is possible to solve the prior art problems described above.

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The invention is based on targeting a call connection request to a subscriber line to a desired entity through a smart network switching center and controlling, under the control of the smart network switching center, that the call is answered by a party having access to the requested information.

More specifically, the method according to the invention is characterized in what is set forth in the characterizing part of claim 1.

The invention provides considerable advantages. PSTN subscriber interfaces can be reasonably used in circumstances where their use was previously inappropriate. The invention provides an effective way of limiting the ability of an unauthorized party in the vicinity of a terminal connected to a subscriber line 10 to answer an incoming call. This is useful in circumstances where at least some of those in the vicinity of the subscriber line want to hide the identity or other identity of the calling subscriber. The intended conditions include e.g. different situations where people live together and share a phone. The invention allows the joint ownership but private use of a particular telephone or 15 telephone subscriptions. The use of the invention may also include a mobile station.

The invention will now be described by way of example and with reference to the accompanying drawings.

Figure 1 shows one apparatus for carrying out the method according to the invention.

The flowchart of Figure 2 is divided into two sheets of paper in sections 2a and 2b and illustrates one method of addressing a call connection request to a subscriber line according to the invention by means of a telephone network SCP and IP communicator and other equipment shown in Figure 1.

The apparatus according to Fig. 1 is as follows: The A-subscriber interface 11 is a calling subscriber from which the identity of the calling party is to be encrypted by those in the vicinity of the C-subscriber line 15 who do not know the valid password.

The SSP exchange 12 is a SSP-level exchange capable of performing an IN trigger on the basis of the B subscriber identity received from the A subscriber interface.

SCP 13 is an intelligent network controller into which the SSP exchange 12 is capable of performing an IN trigger.

The IP communicator 14 is a means capable of transmitting desired communications 5 to a telephone connection connected to a particular subscriber interface.

The C subscriber interface 15 is a subscriber interface to which a call connection request according to a particular subscriber identity, referred to herein as a B subscriber identity, received from the A subscriber interface is assigned. There are several B subscriber identities corresponding to one C subscriber interface 15 and each set to correspond to its own 10 user identities. The methods of the invention require the receipt of such user entity identification information from the C-subscriber interface 15 as a prerequisite for establishing a telephone connection between the A-subscriber line 11 and the C-subscriber line 15.

15 The following is a more detailed explanation of the procedures shown in the flowchart of Figure 2:

Typically, notifications from the IP device are sent to subscriber A only. In the method of this example, an ICA (Initiate Call Attempt) is used to transmit messages from the IP terminal to the B subscriber. This ICA call is a so-called temporary call made by an intelligent network controller SCP, which is initiated by an ICA operation of the IN standards 20. The individual numbered points in the flow chart of Figure 2 are as follows:

Steps 101 to 102 of the flowchart are performed to inform the intelligent network A-25 of the willingness, expressed by dialing received from a subscriber interface 11, to: telephone contact with a particular entity having a B subscriber identity, such as a B subscriber number.

101) Forwarding a call connection request 30, such as dialing, received from the A-11 subscriber line 11 to the SSP exchange 12.

102) Transmitting information on the call connection request received from the A-subscriber line 11 direction from the SSP exchange 12 to the intelligent network controller SCP 13 (Service Control Point).

Step 103 of the flowchart is performed to determine if a specification according to the received B-subscriber identity is available to SCP 13. If such a determination is not currently available to SCP 13, then steps 104 to 105 of the flowchart are performed. Otherwise, proceed from step 106.

103) The SCP 13 controls an IN script that is set to be executed in response to a specific call connection request received by the SSP exchange 12.

104) If the received B-subscriber identity is not successfully retrieved into the script, the A-15 subscriber interface 11 is notified of a failed call.

105) The call is then disconnected.

Step 106 of the flowchart is performed to determine whether 20 received subscriber identity C according to the received B subscriber identity are bound to SCP 13. If such a subscriber identity is not currently available to SCP 13, steps 108 to 109 of the flow chart or other operations associated with subscriber identity B are performed. Otherwise, after step 107, continue from step 110.

106) If the B-subscriber identity is obtained in a script, it is used to retrieve C-subscriber identity, such as C-subscriber number, from the client data, which is used herein as a control target identity, such as a control target object number.

107) Checking the information associated with the B-30 subscriber identity under control of the SCP 13 according to the IN script.

10814) If the control technology associated with the received B-subscriber identity is not found in the customer data, the A-subscriber interface 11 is informed thereof.

5 109) The call is then disconnected.

Steps 110 to 112 of the flow chart are performed to provide the desired information from the IP communicator to the C-subscriber interface 15, and steps 113 to 121 are performed to ensure that the call to be established is only directed to the desired 10 parties.

110) The IN script initiates an ICA call to a subscriber C subscriber identity 15 found in the customer data and sends a call connection request to it.

111) In response to the off-hook signal received from the C-subscriber interface 15, the intelligent network directs a temporary telephone connection between the IP communicator 14 and the C-subscriber interface 15.

112) The IP communicating device 14 informs the C subscriber interface 15 of whom the call is coming from. In this connection, the C-subscriber interface 15 is also asked for either a password or a signal or a message set to indicate that the desired party is not present.

113) Receiving a password attempt expressed by DTMF characters from the 15 directions of the C-subscriber line.

114) Checking whether the received password attempt contains a signal or message that is set to indicate that the desired entity, here a particular B-30 subscriber, is not present.

If, at step 114, a signal or message was received that is set to indicate that the desired B-subscriber is not present, proceed to step 115. Otherwise, skip to step 117.

11511) Informing subscriber A 11 that the desired B subscriber is not present.

(116) The call is then disconnected.

117) comparing the received password attempt with the specified password of the desired B subscriber's client data.

If the received password attempt does not match the password specified in the B-subscriber's client data, steps 118-119 of the flowchart are executed, otherwise a telephone connection is established between A-subscriber line 11 and C-subscriber line 15 as described in 120-121.

118) Notifying the A-subscriber line 11 of the incorrect password attempts received.

15 119) End the call.

120) When the received password attempt responds to the password specified in the subscriber B client data, the ICA call established in step 110 is disconnected.

121) Establishing a telephone connection between the A subscriber line 11 and the C subscriber line 15.

Thus, a telephone connection is established between the A subscriber line 11 and the C subscriber line 15 with the assistance of the IP communication device 14 and the SCP 13.

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The invention may also be practiced in the following ways: B-subscriber numbers can be implemented either by redialling or by multi-numbering, as a specified ringing. If the call is by redial, an additional number will be added to the call number 30 of the subscription. In multi-numbering, any number leading to an IN trigger from the available number space can be selected as the call number.

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When a message is called from the information device to the person who answers the call, the message can be given either in the form of an access number or, for example, in the name of the owner of the access number. This requires that a large number of names be recorded on the IP device.

5 If subscriber B gives the subscriber the owner is not present, eg (#), the flowchart informs subscriber A that the owner is not present, and * the call is disconnected. Alternatively, this can also be done so that the call is not disconnected, but the A-subscriber is given the option of either disconnecting the call or dialing a standard telephone number of the B-subscription. If the A subscriber dials a standard call, then 10 calls are made without the assistance of the IP device, just like a normal call.

The invention can also be applied to mobile phones. In some cases, the same mobile phone may be used by more than one person.

15 The password check described in the flowchart can be performed such that the password can be entered three times, for example, before the call is terminated.

When the network elements wait for the B-subscriber's chosen password, it is certainly wise to set a time limit within which the call will be disconnected unless the B-subscriber selects 20 anything.

. The method of the invention uses a subscriber interface connected to a telecommunications network from which user definable control information, such as DTMF tone frequency signals, can be received. The call connection request refers to control signaling of the telecommunication network 25 requesting the telecommunication network members or the telecommunication network related entities to open a specific communication channel. The call connection request may be directed to a desired user entity in the vicinity of the subscriber line. Such an entity may be, for example, a person, a group of persons, an identity associated with a particular activity of a person, or even a device, an application program running on a device, or an instance thereof.

30 The user entity identifier refers to the subscriber identifier of the user, such as the B subscriber number, which is connected to the telecommunications network for the C subscriber interface under consideration.

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8 111499 The user entity identifier information is accompanied by the user entity identifier, which is an available record of the intelligent network. In this case, the user entity identification information and the user entity identification information form a match pair in the telecommunications network, e.g., in a specific database available to the SCP.

5 An allocation message is sent to the subscriber line informing the subscriber line of the user to whom the call is to be connected. Such a targeting message may be, for example, a message sent by the IP communicator to the subscriber line or even a text message sent by the exchange to the ISDN.

The identifier attempt is user-definable control information received from the subscriber interface, which the telecommunication network is configured to compare with a particular user identity, which identifies the user to whom the call connection request is to be directed. In this application, credentials and passwords have the same meaning as credentials and passwords.

Comparison of the identification attempt with a particular user entity identification information is performed in the telecommunication network and / or in the control of the telecommunication network, e.g., such that the SCP or some other intelligent network element controls the comparison. An intelligent network is a subsystem of a telephone network or a system in communication with a telephone network that is configured to control more complex call control operations.

The communication device is a separate system or subsystem of a telephone exchange, from which the information received from the 20 communication devices can be transmitted by the telephone exchange to a communication channel established by a selective connection to the subscriber line under consideration.

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Claims (11)

111499 A method for assigning a call association request to a subscriber line to a desired entity, characterized in that: sending a call connection request to the called user entity, and identifying the entity identifier with the called party identity, and - establishing a telephone connection (121) between the calling subscriber and the subscriber line under consideration if the user entity identifier matches the identifier of the called party. A method according to claim 1, characterized in that the targeting message to be sent (112) to the subscriber line under consideration, which directs the voice mapping request to the * user defined as connected to the subscriber line being viewed, is information transmitted by the communication device connected to the telecommunications network. A method according to any one of claims 1 to 2, characterized by: - receiving (113) an identifier request from the subscriber interface under consideration and comparing ·. (117) calling the intelligent network control to the called party identity, and 111499 - the identity of the called entity or the signal or status generated in response to the identification entity, or the connection or calling subscriber of the called subscriber. Method according to one of Claims 1 to 3, characterized in that the identification data of at least two user entities to be connected to the telecommunications network to be considered for the subscriber connection are not PSTN or PLMN subscriber numbers. A method according to any one of claims 1 to 4, characterized by: - associating to the associated user identifier 10 information about the user identifier information associated with at least one subscriber connection with the intelligent network or intelligent network control, and - comparing (117) the received user identifier information intelligent network or intelligent network control. A method according to any one of claims 1 to 5, characterized in that the user entity identifier request received from the subscriber line is received (113) as DTMF tone frequency signals. Method according to one of Claims 1 to 6, characterized in that the identification data of at least two * 20 user entities to be connected to the telecommunications network for subscriber line-specific definitions are separated by adding a post-selection to the identity of the subscriber line under consideration. Method according to one of Claims 1 to 7, characterized in that the identification data of at least two user entities to be connected to the telecommunications network as subscriber line-specific definitions are separated by using multiple numbering in the subscriber line under consideration. A method according to any one of claims 1 to 8, characterized in that the targeting message which directs the call connection request to the called user is a message transmitted from the IP communication device (14) to the subscriber interface under consideration. »4111499 A method according to any one of claims 1 to 9, characterized in that the allocation message which directs the call connection request to the called user entity is transmitted (110-112) to the subscriber subscriber to be considered on the ICA call. A method according to any one of claims 1 to 10, characterized in that at least one new user identity identifier is received, and and 10. establishing a telephone connection between the calling subscriber line and the subscriber line under consideration if the user entity identifier attempt is equivalent to the user entity being called. 111499