@techreport{hellstrom-slim-modalitypref-02,
    number =    {draft-hellstrom-slim-modalitypref-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-hellstrom-slim-modalitypref/02/},
    author =    {Gunnar Hellstrom},
    title =     {{Negotiating Modality in Real-Time Communications}},
    pagetotal = 7,
    year =      2017,
    month =     jun,
    day =       10,
    abstract =  {When negotiating language for a real-time session, users may have very specific preferences for using one modality (spoken, written or signed) over other possible but less preferred modalities. This specification introduces indication of modality preference to be used in session negotiation in combination with an earlier speified mechanism for language preference negotiation.},
}