@techreport{henrikson-sip-original-dialog-id-02,
    number =    {draft-henrikson-sip-original-dialog-id-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-henrikson-sip-original-dialog-id/02/},
    author =    {Eric Henrikson},
    title =     {{Private SIP Extension for Original Dialog Identifier}},
    pagetotal = 9,
    year =      2002,
    month =     may,
    day =       22,
    abstract =  {This memo describes a private extension to SIP in the form of a P-Original-Dialog-ID header. The header is used to correlate two different dialogs across a B2BUA that is non-transparent to dialogs. The contents of the header identify the original dialog (Call-id, From tag, To tag) associated with the SIP entity that inserted the header into a request. When the same instance of the header is received at that SIP entity in a different request, then it is used to correlate the two different dialogs.},
}