This Recommendation specifies the Protocol Implementation Conformance Statement (PICS) proforma the T_B reference point or coincident S_B and T_B reference point (as defined in ITU-T I.413 [3]) of implementations conforming to the procedures for the modification of the peak cell rate traffic parameter by the connection owner in the active phase of the call of the Digital Subscriber Signalling System No. 2 (DSS2) protocol for the Broadband Integrated Services Digital Network (B-ISDN), ITU-T Q.2963.1 [2].

Other Recommendations of the Q.2963.1 family specify Test Suite Structure and Test Purposes (TSS & TP) and Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma based on this Recommendation.

This Recommendation is applicable to equipment, supporting the modification of the peak cell rate traffic parameters of the connection in the active phase of the call by the connection owner, to be attached at either side of a T_B reference point or coincident S_B and T_B reference point when used as an access to the public B-ISDN.

To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and options have been implemented for a given protocol. Such a statement is called an Implementation Conformance Statement (ICS). An ICS stating what capabilities and options have been implemented for a particular protocol is called a protocol ICS. This is commonly abbreviated to "PICS".

The supplier of a protocol implementation that is claimed to conform to ITU-T Q.2963.1 [2] is required to complete a copy of the PICS proforma provided in Annex A of the endorsed document as modified by this Recommendation.