6.2.24 RTCP Codec Control Commands and Indications
23.3333GPPMultimedia Resource Function Controller (MRFC) - Multimedia Resource Function Processor (MRFP) Mp interface: Procedures descriptionsRelease 17TS
Figure 6.2.24.1 shows the message sequence chart example for indicating "RTCP Codec Control Commands and Indications". The MRFC includes the "CCM BASE" information element in the Local and Remote descriptors to indicate that the MRFP shall be prepared to receive and is allowed to send the RTCP CCM "FIR" and "TMMBR/TMMBN" feedback messages (defined in IETF RFC 5104 [61]).
Figure 6.2.24.1: Procedure to indicate RTCP Codec Control Commands and Indications