Summary

This Recommendation defines the operation of the Digital Subscriber Signalling System Number 2 (DSS 2) for the support of the Frame relay service that may be provided, as a network provider option, at the T_B or at the coincident S_B and T_B reference point of the User to Network Interface of the Broadband Integrated Services Digital Network (B-ISDN). The signalling procedures defined in this Recommendation specify only the extensions to Recommendations Q.2931 and Q.2961.1 and do not repeat states, messages, information elements and procedures contained therein.

The signalling procedures defined support only single step Frame relay call/connection control with one ATM virtual connection supporting one frame relay connection.