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EN 300 138-1 : 1.3.4
M00044676
New product
EN 300 138-1 : 1.3.4
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - CLOSED USER GROUP (CUG) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - PART 1: PROTOCOL SPECIFICATION
European Telecommunications Standards Institute
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General Product Information
| Document Type | Standard |
| Status | Current |
| Publisher | European Telecommunications Standards Institute |