Summary

Recommendation ITU‑T G.7713/Y.1704 provides the requirements for the distributed call and connection management for both the user network interface (UNI) and the network node interface (NNI). The requirements in this Recommendation specify the communications across interfaces to effect automated call operations and connection operations. Items covered in this Recommendation include:

–           attribute specifications;

–           message specifications;

–           signal flows;

–           management of DCM.

This Recommendation does not cover any aspects related to routing or automatic discovery.

Revisions to this Recommendation include the following changes:

–           Addition of interlayer signalling requirements following the ITU‑T G.8080 interlayer architecture.