@techreport{elwell-sipping-redirection-reason-02,
    number =    {draft-elwell-sipping-redirection-reason-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-elwell-sipping-redirection-reason/02/},
    author =    {John Elwell},
    title =     {{SIP Reason header extension for indicating redirection reasons}},
    pagetotal = 14,
    year =      2005,
    month =     jun,
    day =       6,
    abstract =  {This proposes an extension to the SIP Reason header to provide additional information concerning retargeting in SIP, a particular motivation being improved interoperability with PSTN diversion.},
}