Full Description

Generic Requirements for ISDN Electronic Key Telephone Service

Document Number GR-205
Issue Number 01
Issue Date Sep 1997
Replaces TR-TSY-000205 Issue01

    ABSTRACT: Electronic Key Telephone Service (EKTS) allows a user served by an Integrated Services Digital Network (ISDN) interface to have access to multiple Directory Numbers (DNs). A given DN can also be accessed by more than one user, i.e., from more than one terminal, on the same ISDN interface and/or on different interfaces. Two or more users with access to the same DN can be simultaneously bridged onto the same call on that DN. In addition, EKTS allows for the following capabilities: hold, DN-bridging, intercom calling, abbreviated or delayed ringing treatment on incoming calls, station ringing transfer, automatically or manually invoked bridged call exclusion, and call appearance call handling.

    This document contains the Telcordia view of generic requirements for the Integrated Services Digital Network (ISDN) Electronic Key Telephone Service (EKTS).

    Revision is structured as a "section-for-section" replacement to Issue 1 of the GR and adds or corrects specific text and generic requirements in the document. The revisions may consist of editorial or technical corrections with the primary focus on Section 3, "Feature Requirements."

    GR-205 replaced TR-TSY-000205 and TR-TSY-000205-SUP01.

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