%% You should probably cite draft-ietf-sipping-pending-additions instead of this I-D.
@techreport{camarillo-sipping-pending-additions-00,
    number =    {draft-camarillo-sipping-pending-additions-00},
    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-pending-additions/00/},
    author =    {Gonzalo Camarillo},
    title =     {{The Session Initiation Protocol (SIP) Pending Additions Event Package}},
    pagetotal = 0,
    year =      2006,
    month =     jun,
    day =       13,
    abstract =  {This document defines the SIP Pending Additions event package. This event package is used by relays to inform user agents about the consent-related status of the entries to be added to a resource list.},
}