CONTENTS - ERROR PERFORMANCE AND AVAILABILITY OBJECTIVES FOR HYPOTHETICAL REFERENCE DIGITAL SECTIONS FORMING PART OR ALL OF THE MEDIUM-GRADE PORTION OF AN INTEGRATED SERVICES DIGITAL NETWORK CONNECTION AT A BIT RATE BELOW THE PRIMARY RATE UTILIZING DIGITAL RADIO-RELAY SYSTEMS

ANNEX 1
Overall availability objectives for digital radio-relay systems in the medium-grade portion of an ISDN connection
1 HRDSs
2 Availability objectives