%% You should probably cite draft-ietf-sip-ua-privacy instead of this I-D.
@techreport{munakata-sip-privacy-new-01,
    number =    {draft-munakata-sip-privacy-new-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-munakata-sip-privacy-new/01/},
    author =    {Mayumi Munakata},
    title =     {{UA-Driven Privacy Mechanism for SIP}},
    pagetotal = 10,
    year =      2007,
    month =     jul,
    day =       12,
    abstract =  {To withhold a user's identity and related information, RFC 3323 defines a Privacy mechanism for SIP, which requires the use of an privacy service. This document proposes a new privacy mechanism that a user agent can facilitate to conceal privacy-sensitive information without the need for aid from a privacy service.},
}