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ETSI EN 301 174-1
M00001628
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ETSI EN 301 174-1 Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Signalling specification for frame relay service; Part 1: Protocol specification [ITU-T Recommendation Q.2933 (1996), modified]
standard by European Telecommunications Standards Institute, 10/01/1998
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