PISN- Specification, Functional Model and Information Flows - Call Offer Supplementary Services (COSD), Second Edition
Document status: Active
PISN- Inter-Exchange Signalling Protocol - Call Offer Supplementary Service (QSIG-CO), Third Edition
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PISN- Specification, Functional Model and Information Flows - Do Not Disturb and Do Not Disturb Override Supplementary Services (DND(O)SD), Second Edition
Document status: Active
PISN- Inter-Exchange Signalling Protocol - Do Not Disturb and Do Not Disturb Override Supplementary Services (QSIG-DND(O), Third Edition
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Data Interchange on 130mm Optical Disk Cartridges - Capacity: 2 Gigabyte per Cartridge
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Data Interchange on 12,7mm 36-Track Magnetic Tape Cartridges
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Data Interchange on 12,7mm 112-Track Magnetic Tape Cartridges - DLT2 Format
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3,18mm Wide Magnetic Tape Cartridge for Information Interchange - Helical Scan Recording - DDS-2 Format using 120m Length Tapes, Second Edition
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Immunity of Information Technology Equipment to Lightning Surges
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