Signalling System No. 7 - ISDN User Part Signalling Procedures Series Q: Switching and Signalling Specifications of Signalling System No. 7 - ISDN User Part
This amendment contains clarifications and modifications to ITU-T 4.764 (1999) in order to accommodatethe requirements of DME signalling,Global Call Reference,Inter-nodal Traffic Group Identification,and Carrier Selection Indication.