@misc{rfc7131,
    series =    {Request for Comments},
    number =    7131,
    howpublished =  {RFC 7131},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC7131},
    url =       {https://www.rfc-editor.org/info/rfc7131},
    author =    {Mary Barnes and Francois Audet and Shida Schubert and Hans Erik van Elburg and Christer Holmberg},
    title =     {{Session Initiation Protocol (SIP) History-Info Header Call Flow Examples}},
    pagetotal = 52,
    year =      2014,
    month =     mar,
    abstract =  {This document describes use cases and documents call flows that require the History-Info header field to capture the Request-URIs as a Session Initiation Protocol (SIP) Request is retargeted. The use cases are described along with the corresponding call flow diagrams and messaging details.},
}