%% You should probably cite draft-ietf-avtext-mixer-to-client-audio-level instead of this I-D. @techreport{ivov-avt-slic-04, number = {draft-ivov-avt-slic-04}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ivov-avt-slic/04/}, author = {Emil Ivov and Enrico Marocco and Jonathan Lennox}, title = {{A Real-Time Transport Protocol (RTP) Extension Header for Mixer-to- client Audio Level Indication}}, pagetotal = 13, year = 2011, month = jan, day = 16, abstract = {This document describes a mechanism for RTP-level mixers in audio conferences to deliver information about the audio level of the individual participants. Such audio level indicators are transported in the same RTP packets as the audio data they pertain to.}, }