@misc{rfc3262,
    series =    {Request for Comments},
    number =    3262,
    howpublished =  {RFC 3262},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC3262},
    url =       {https://www.rfc-editor.org/info/rfc3262},
    author =    {Henning Schulzrinne and Jonathan Rosenberg},
    title =     {{Reliability of Provisional Responses in Session Initiation Protocol (SIP)}},
    pagetotal = 14,
    year =      2002,
    month =     jul,
    abstract =  {This document specifies an extension to the Session Initiation Protocol (SIP) providing reliable provisional response messages. This extension uses the option tag 100rel and defines the Provisional Response ACKnowledgement (PRACK) method. {[}STANDARDS-TRACK{]}},
}