%% You should probably cite rfc4734 instead of this I-D.
@techreport{ietf-avt-rfc2833bisdata-08,
    number =    {draft-ietf-avt-rfc2833bisdata-08},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-avt-rfc2833bisdata/08/},
    author =    {Henning Schulzrinne and Tom Taylor},
    title =     {{Definition of Events for Modem, Fax, and Text Telephony Signals}},
    pagetotal = 47,
    year =      2006,
    month =     jun,
    day =       16,
    abstract =  {This memo updates RFC 4733 to add event codes for modem, fax, and text telephony signals when carried in the telephony event RTP payload. It supersedes the assignment of event codes for this purpose in RFC 2833, and therefore obsoletes that part of RFC 2833. {[}STANDARDS-TRACK{]}},
}