@techreport{boulton-mmusic-sdp-control-package-attribute-07,
    number =    {draft-boulton-mmusic-sdp-control-package-attribute-07},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-boulton-mmusic-sdp-control-package-attribute/07/},
    author =    {Chris Boulton},
    title =     {{A Session Description Protocol (SDP) Control Package Attribute}},
    pagetotal = 13,
    year =      2011,
    month =     sep,
    day =       5,
    abstract =  {This document defines a new Session Description Protocol (SDP) media- level attribute: "ctrl-package". The "ctrl-package" attribute conveys details of the SIP Control Framework extension packages that are supported by a client participating in an offer/answer exchange.},
}