LMSD Offerless INVITE handling
To enhance LMSD interworking, the Oracle Communications Session Border Controller does not remove SDP from a 180 response sent back to the UAC when the initial request did not contain SDP. The Oracle Communications Session Border Controller also forwards UAS-side UPDATE requests to the UAC; it does not respond locally. These represent behavioral changes and require no configuration.
When LMSD Interworking is configured on a SIP interface, and when the UAS includes SDP in the 180 Ringing message (and the Alert-Info header is set to rt), the Oracle Communications Session Border Controller no longer strips the SDP when forwarding the 180 back to the UAC.