@techreport{ietf-mmusic-sip-100rel-01,
    number =    {draft-ietf-mmusic-sip-100rel-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-mmusic-sip-100rel/01/},
    author =    {Jonathan Rosenberg and Henning Schulzrinne},
    title =     {{Reliability of Provisional Responses in SIP}},
    pagetotal = 12,
    year =      1999,
    month =     may,
    day =       21,
    abstract =  {This document specifies an extension to the Session Initiation Protocol (SIP) providing reliable provisional response messages.},
}