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LSSGR: Facility/Service Selective Dialing Switching and Signaling Requirements (FSD 20-24-0020)


Document Number GR-691
Issue Number 01
Issue Date Jun 2000
Replaces TR-TSY-000691 Issue01
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    ABSTRACT: GR-691 replaces TR-TSY-000691, Issue 1, but contains NO TECHNICAL CHANGES from that original document. It has been issued strictly to
    conform with the new Telcordia Technologies document format and GR process, and carries a new issue number and date.

    A common need for many anticipated new services is a practical way for a calling subscriber to request those services. For example,
    means must be provided for a subscriber to ensure the selection of a data facility on a connection involving a particular service such
    as 56-kb/s circuit-switched data. With Facility/Service Selective (FSS) options, a subscriber can dial a Facility Code (FC) and/or a
    Service Code (SC) to ensure the selection of a particular facility and/or service on domestic intraLATA (Local Access and Transport
    Area) and interLATA calls, and on international calls. This GR describes the view of Telcordia on generic requirements for processing
    calls that apply FSS options. The document specifies the FSS dialing procedure and the associated switching and multifrequency
    signaling requirements needed to define FSS call processing.

    GR-691 replaced TR-TSY-000691 and TA-TSY-000410.

    GR-666, GR-672, GR-674, GR-675, GR-677, GR-679, GR-690, GR-691, GR-692, GR-693, GR-695,
    GR-697, and GR-698, replaced TR-TSY-000530.

    Components of this product are:
    GR-691-CORE

    Table of Contents:

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