Summary

This Recommendation belongs to the DSS2 family of ITU-T Recommendations and specifies extensions to Recommendation Q.2931 to specify the additional DSS2 protocol elements (messages, information elements, procedures and functions) required to support the separated control (establishment and clearing) of a point-to-point call. This Q.2931-based separated call control protocol requires the use of the bearer control protocol defined in Recommendation Q.2983 to add and remove bearers to/from the call.