@techreport{peterson-sipping-role-authz-01,
    number =    {draft-peterson-sipping-role-authz-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-peterson-sipping-role-authz/01/},
    author =    {Jon Peterson},
    title =     {{Role-based Authorization Requirements for the Session Initiation Protocol}},
    pagetotal = 13,
    year =      2003,
    month =     oct,
    day =       27,
    abstract =  {This document lays out a set of requirements related to role-based authorization for the Session Initiation Protocol. While numerous authentication mechanisms are described in the base SIP specification, role-based authorization provides information used to make policy decisions based on the attributes of a participant in a session. This approach provides a richer framework for authorization, as well as allow greater privacy for users of an identity system.},
}