@misc{rfc6357,
    series =    {Request for Comments},
    number =    6357,
    howpublished =  {RFC 6357},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6357},
    url =       {https://www.rfc-editor.org/info/rfc6357},
    author =    {Volker Hilt and Eric Noel and Charles Shen and Ahmed Abdelal},
    title =     {{Design Considerations for Session Initiation Protocol (SIP) Overload Control}},
    pagetotal = 25,
    year =      2011,
    month =     aug,
    abstract =  {Overload occurs in Session Initiation Protocol (SIP) networks when SIP servers have insufficient resources to handle all SIP messages they receive. Even though the SIP protocol provides a limited overload control mechanism through its 503 (Service Unavailable) response code, SIP servers are still vulnerable to overload. This document discusses models and design considerations for a SIP overload control mechanism. This document is not an Internet Standards Track specification; it is published for informational purposes.},
}