The purpose of this Recommendation is to provide limits for bringing-into-service and limits for maintenance of international multi-operator digital PDH paths which operate at or above the primary rate and connections which operate below the primary rate in order to achieve the performance objectives given for a multiservice environment. These objectives include error performance (ITU-T G.821 and ITU-T G.826), timing performance (ITU-T G.822) and availability. This Recommendation defines the parameters and their associated objectives in order to respect the principles given in ITU-T M.20, ITU-T M.32 and ITU-T M.34.