%% You should probably cite draft-ietf-mmusic-sdp-cs instead of this I-D.
@techreport{garcia-mmusic-sdp-cs-02,
    number =    {draft-garcia-mmusic-sdp-cs-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-garcia-mmusic-sdp-cs/02/},
    author =    {Miguel Angel García and Simo Veikkolainen},
    title =     {{Conventions for the Use of the Session Description Protocol (SDP) for Circuit-Switched Bearer Connections in the Public Switched Telephone Network (PSTN)}},
    pagetotal = 21,
    year =      2008,
    month =     oct,
    day =       30,
    abstract =  {This memo describes use cases, requirements, and protocol extensions for using the Session Description Protocol (SDP) Offer/Answer model for establishing audio media streams over circuit-switched bearers in the Public Switched Telephone Network (PSTN).},
}