@techreport{elwell-sip-e2e-identity-important-03,
    number =    {draft-elwell-sip-e2e-identity-important-03},
    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-sip-e2e-identity-important/03/},
    author =    {John Elwell},
    title =     {{End-to-End Identity Important in the Session Initiation Protocol (SIP)}},
    pagetotal = 31,
    year =      2009,
    month =     feb,
    day =       25,
    abstract =  {This document surveys existing mechanisms in the Session Initiation Protocol (SIP) for identifying and authenticating the source of a SIP request (or caller identification). It describes how identification and authentication are not always end-to-end and the problems that this can lead to, particularly since media security based on techniques such as DTLS-SRTP is dependent on end-to-end authenticated identification of parties. This work is being discussed on the sip@ietf.org mailing list.},
}