Rec. ITU-T E.771 (03/1993) … NETWORK GRADE OF SERVICE PARAMETERS AND TARGET VALUES FOR CIRCUIT-SWITCHED LAND ...
FOREWORD
CONTENTS
1 Introduction
2 Grade of Service parameters
    2.1 General parameters
    2.2 Parameters particular to mobile systems
3 Cellular systems
    3.1 Post-selection delay
    3.2 Answer signal delay
    3.3 Call release delay
    3.4 Probability of end-to-end blocking
    3.5 Probability of connection cut-off due to unsuccessful land cellular handover
    3.6 Target values for GOS parameters
4 Non-cellular systems
5 History
Bibliography