%% You should probably cite rfc5278 instead of this I-D.
@techreport{ietf-enum-vmsg-02,
    number =    {draft-ietf-enum-vmsg-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-ietf-enum-vmsg/02/},
    author =    {Donald Troshynski and Jason Livingood},
    title =     {{IANA Registration of Enumservices for Voice and Video Messaging}},
    pagetotal = 22,
    year =      2008,
    month =     may,
    day =       2,
    abstract =  {This document registers the Enumservice named "vmsg", which is used to facilitate the real-time routing of voice, video, and unified communications to a messaging system. This vmsg Enumservice registers three Enumservice types: "voicemsg", "videomsg", and "unifmsg". Each type also registers the subtypes "sip", "sips", "http", and "https", as well as the subtype "tel" for the "voicemsg" type. {[}STANDARDS-TRACK{]}},
}