ETSI EN 301 813-1
ETSI EN 301 813-1
Integrated Services Digital Network (ISDN) and Broadband Integrated Services Digital Network (B-ISDN); Generic Addressing and Transport (GAT) protocol; Part 1: Protocol specification [ITU-T Recommendation Q.860 (2000), modified]
standard published 12/01/2000 by European Telecommunications Standards Institute