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).