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Browse Prior Art Database

Barring of International Call Termination

IP.com Disclosure Number: IPCOM000128743D
Original Publication Date: 2005-Oct-25
Included in the Prior Art Database: 2005-Oct-25
Document File: 2 page(s) / 434K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

In current telephone networks, if a called subscriber is roaming in an international network or has forwarded the call to an international number, the calling subscriber has no knowledge about it. The following idea proposes a feature, that will allow the calling subscriber to decide whether he wants the call to be terminated if it leads to an international network or not. The introduced new service is called: Barring of International Call Termination (BICT). It shall be a PLMN (PLMN, Public Land Mobile Network) specific supplementary service which can be activated and deactivated by the subscriber using USSD (USSD, Unstructured Supplementary Services). For transmitting the subscription information of the BICT feature, the reserved parameters of the ISUP protocol (ISUP, ISDN User Part) will be used. The calling subscriber’s network as well as the called subscriber’s network must support the BICT feature. The following cases apply: 1. The subscriber is not reachable at the HLR (HLR, Home Location Register) or unconditional call forwarding: The call will be barred at the called subscriber’s HLR if the call has to be forwarded to an international number and if the calling subscriber has registered for the BICT feature. In this case, the GMSC (GMSC, Gateway Mobile Switching Centre) should send the information about the BICT feature as part of the extension container of the SRI (SRI, Standard Request for Information) to the HLR. The extension container will just have information which says whether the calling subscriber has the BICT feature.

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Barring of International Call Termination

Idea: Srinath Swaminathan, IN-Bangalore, Guruprasad Shira Dilip, IN-Bangalore

In current telephone networks, if a called subscriber is roaming in an international network or has forwarded the call to an international number, the calling subscriber has no knowledge about it. The following idea proposes a feature, that will allow the calling subscriber to decide whether he wants the call to be terminated if it leads to an international network or not.

The introduced new service is called: Barring of International Call Termination (BICT). It shall be a PLMN (PLMN, Public Land Mobile Network) specific supplementary service which can be activated and deactivated by the subscriber using USSD (USSD, Unstructured Supplementary Services). For transmitting the subscription information of the BICT feature, the reserved parameters of the ISUP protocol (ISUP, ISDN User Part) will be used. The calling subscriber's network as well as the called subscriber's network must support the BICT feature.

The following cases apply:

1. The subscriber is not reachable at the HLR (HLR, Home Location Register) or unconditional call forwarding: The call will be barred at the called subscriber's HLR if the call has to be forwarded to an international number and if the calling subscriber has registered for the BICT feature. In this case, the GMSC (GMSC, Gateway Mobile Switching Centre) should send the information about the BICT feature as part of the extension container of the SRI (SRI, Standard Request for Information) to the HLR. The extension container will just have information which says whether the calli...