%% You should probably cite draft-ietf-sipping-consent-format instead of this I-D.
@techreport{camarillo-sipping-consent-format-01,
    number =    {draft-camarillo-sipping-consent-format-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-camarillo-sipping-consent-format/01/},
    author =    {Gonzalo Camarillo},
    title =     {{A Document Format for Requesting Consent}},
    pagetotal = 14,
    year =      2006,
    month =     jun,
    day =       16,
    abstract =  {This document defines an Extensible Markup Language (XML) format for requesting consent. A permission document written in this format asks a recipient for permission to perform a particular translation, which is described in the document.},
}