@misc{rfc9027,
    series =    {Request for Comments},
    number =    9027,
    howpublished =  {RFC 9027},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC9027},
    url =       {https://www.rfc-editor.org/info/rfc9027},
    author =    {Martin Dolly and Chris Wendt},
    title =     {{Assertion Values for Resource Priority Header and SIP Priority Header Claims in Support of Emergency Services Networks}},
    pagetotal = 7,
    year =      2021,
    month =     jun,
    abstract =  {This document adds new assertion values for a Resource Priority Header ("rph") claim and a new SIP Priority Header ("sph") claim for protection of the "psap-callback" value as part of the "rph" Personal Assertion Token (PASSporT) extension in support of the security of emergency services networks for emergency call origination and callback.},
}