This Recommendation is one of a set of closely related Recommendations, comprising Recommendations E.810, E.830, E.845, E.850 and E.855 concerned with the accessibility, retainability and integrity of telephone services.
ITU-T E.845-1993 Referenced Document
ITU-T E.800 Definitions of terms related to quality of service (Study Group 2)*， 2008-09-01 Update
ITU-T E.810 Framework of the Recommendations on the Serveability Performance and Service Integrity for Telecommunication Services (Study Group II) 4 pp
ITU-T E.845 CONNECTION ACCESSIBILITY OBJECTIVE FOR THE INTERNATIONAL TELEPHONE SERVICE
ITU-T E.845-1993 history
1993ITU-T E.845-1993 CONNECTION ACCESSIBILITY OBJECTIVE FOR THE INTERNATIONAL TELEPHONE SERVICE