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ATIS 1000613.1991(R2012)
- Integrated Services Digital Network (ISDN) - Call Waiting Supplementary Service (formerly T1.613-1991 (R2007) )
- standard by Alliance for Telecommunication Industry Solutions, 04/01/1991
- Publisher: ATIS
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This standard is one of a series that defines and describes supplementary services within the context of an Integrated Services Digital Network (ISDN). The international of this service with other ISDN services is also included. The purpose of the standard is to allow maximum compatibility among network- and user - owned telecommunication equipment in order to increase the attractiveness and usefulness of ISDN-based capabilities.
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