Network Performance Measurements of ISDN Calls - Series M: TMN and Network Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits Integrated Services Digital Networks Study Group 4; 85pp
This Recommendation defines in-service measurements of ISDN calls and defines the related management information that shall be available at management interfaces of the ISDN local exchanges. This information can be used by the TMN for performance management activities. ISDN-specific in-service measurements are defined for several of the 1.350 [4] parameters in order to provide the TMN with an approximation of the user perspective of these parameters, The TMN capabilities defined by this Recommendation will be applicable to all ISDN D-channels. Actual measurements will take place on a selectable subset of the available D-channels.