APPENDIX I
                                     (to Recommendation Q.764)
                             Contents of the interface elements between
                                  the ISDN user part and the SCCP
               These interface elements are defined in SCCP Recommendations  (Q.711-Q.716)
         and are included here for information.
         I.1    Contents of the REQUEST type 1
               The REQUEST type 1 interface element may contain the following parameters:
               -   connection identification (for further study);
               -   receipt confirmation selection;
               -   expedited data selection;
               -   quality of service parameter set.
         I.2    Contents of the REQUEST type 2
               The REQUEST type 2 interface element may contain the following parameters:
               -   network indicator (for further study);
               -   protocol class;
               -   credit;
               -   connection identification (for further study);
               -   source local reference;
               -   originating signalling point code;
               -   reply request;
               -   refusal indicator.
         I.3    Contents of the REPLY
               The REPLY interface element may contain the following parameters:
               -   source local reference;
               -   protocol class;
               -   credit;
               -   connection identification (for further study).









































         PAGE178 Fascicle VI.8 - Rec. Q.764