CONTENTS

 1     Scope
 2     Normative references
 3     Abbreviations
 4     General
 5     Services of the SAAL at the UNI
 6     Functions of the SSCF at the UNI and signalling protocol stack
 7     Definition of the boundary of SSCF with layer 3 at the UNI
        7.1     Primitives
        7.2     State transition diagrams
 8     Definition of the boundary of SSCF with SSCOP
        8.1     Signals
        8.2     Parameters
        8.3     Sequences of Signals between SSCF and SSCOP
 9     State transition table of SSCF for supporting signalling at UNI
10     Boundary to layer management
11     Applicability of SSCOP parameters and timers to signalling at the UNI
Annex A – Protocol Implementation Conformance (PICS) pro forma to Recommendation Q.2130
Annex B – SSCF for Semi-permanent Connection (SPC) control signalling at the UNI
Appendix I      – Protocol data unit and related primitive sequences for establishment and release of AAL connection at UNI