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Published Date: 01/01/1993

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Published Date: 11/01/1988

Devices for Measuring and Recording Call Durations - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 3 pp

Published Date: 09/01/1997

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Published Date: 07/01/1994

Information Technology - Protocol for Providing the Connectionless-Mode Network Service: Provision of the Underlying Service by a Subnetwork That Provides the OSI Data Link Service - Data Networks and Open System Communications OSI Networkings and System Aspects - Networking

Published Date: 01/01/1994