ITU-T Q.1225-1997 Physical Plane for Intelligent Network Capability Set 2 - Series Q: Switching and Signalling Intelligent Network Study Group 11; 16 pp
In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.
ITU-T Q.1225-1997 history
1997ITU-T Q.1225-1997 Physical Plane for Intelligent Network Capability Set 2 - Series Q: Switching and Signalling Intelligent Network Study Group 11; 16 pp