CCITT Rec. I.352 (11/1988) � NETWORK PERFORMANCE OBJECTIVES FOR CONNECTION PROCESSING DELAYS IN AN ISDN
1 General
    1.1 Reference model
    1.2 Measurement
    1.3 Network conditions
    1.4 User delay
    1.5 Allocation
    1.6 Basic connection
    1.7 Phases
2 Purpose
3 Connection processing delays in ISDN circuit switched connections
    3.1 Connect phase parameters
    3.2 Disconnect phase parameters