@techreport{ietf-sip-congestsafe-02,
    number =    {draft-ietf-sip-congestsafe-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-ietf-sip-congestsafe/02/},
    author =    {Ben Campbell and Dean Willis},
    title =     {{Session Initiation Protocol Extension to Assure Congestion Safety}},
    pagetotal = 12,
    year =      2003,
    month =     oct,
    day =       14,
    abstract =  {The Session Initiation Protocol allows the use of UDP for transport of SIP messages. The use of UDP inherently risks network congestion problems, as UDP itself does not define congestion prevention, avoidance, detection, or correction mechanisms. This problem is aggravated by large SIP messages which fragment at the UDP level. Transport protocols in SIP are also negotiated on a per-hop basis, at the SIP level, so SIP proxies may convert from TCP to UDP and so forth. This document defines by which a SIP User Agent may require that its requests are not sent over UDP or other transports having congestion-related characteristics similar to those of UDP.},
}