The Q.2965-series Recommendations covers the support of quality of service indication for the Broadband Integrated Services Digital Network (B-ISDN) at the TB reference point or coincident SB and TB reference point as defined in Recommendation I.413 [lo] by means of the Digital Subscriber Signalling System No. 2 (DSS2). This Recommendation defines DSS2 protocol formats and procedures that support the indication of Quality of Service-related capabilities. This Recommendation is part of the DSS2 family of ITU-T Recommendations. It specifies the revised coding of the Q.2931 [2] Quality of Service parameter information element specifically to enable the identification of the QoS class (see Recommendation I.356 [11].