ECMA 148 PDF

Published Date: 06/01/1997

PISN-Circuit Mode 64kbit/s Bearer Services-Service Description, Functional Capabilities and Information Flows (BCSD), Second Edition

Published Date: 06/01/1997

PISN- Generic Functional Protocol for the support of Supplementary Services - Inter-Exchange Signalling Procedures and Protocol (QSIG-GF), Third Edition

Published Date: 09/01/1977

PISN- Specification, Functional Model and Information Flows - Message Waiting Indication Supplementary Service (MWISD), Second Edition

Published Date: 01/01/2000

Published Date: 05/01/1990

Published Date: 05/01/1999