Summary

This Recommendation defines the operation of the Digital Subscriber Signalling System No. 2 (DSS 2) for the support of point-to-multipoint switched virtual channel connections, between a root and multiple leaves, 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 procedures provide the capability to add or remove parties under the control of the root. In addition, a leaf party may initiate its withdrawal from the call.