%% You should probably cite rfc4612 instead of this I-D.
@techreport{jones-avt-audio-t38-05,
    number =    {draft-jones-avt-audio-t38-05},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-jones-avt-audio-t38/05/},
    author =    {Hiroshi Tamura and Paul Jones},
    title =     {{Real-Time Facsimile (T.38) - audio/t38 MIME Sub-type Registration}},
    pagetotal = 8,
    year =      2004,
    month =     jun,
    day =       2,
    abstract =  {This document defines the MIME sub-type audio/t38. The usage of this MIME type, which is intended for use within Session Description Protocol (SDP), is specified within ITU-T Recommendation T.38. This memo defines a Historic Document for the Internet community.},
}