@misc{rfc5947,
    series =    {Request for Comments},
    number =    5947,
    howpublished =  {RFC 5947},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5947},
    url =       {https://www.rfc-editor.org/info/rfc5947},
    author =    {John Elwell and Hadriel Kaplan},
    title =     {{Requirements for Multiple Address of Record (AOR) Reachability Information in the Session Initiation Protocol (SIP)}},
    pagetotal = 13,
    year =      2010,
    month =     sep,
    abstract =  {This document states requirements for a standardized SIP registration mechanism for multiple addresses of record (AORs), the mechanism being suitable for deployment by SIP service providers on a large scale in support of small to medium sized Private Branch Exchanges (PBXs). The requirements are for a solution that can, as a minimum, support AORs based on E.164 numbers. This document is not an Internet Standards Track specification; it is published for informational purposes.},
}