@techreport{ietf-avt-rtp-no-op-04,
    number =    {draft-ietf-avt-rtp-no-op-04},
    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-avt-rtp-no-op/04/},
    author =    {Flemming Andreasen},
    title =     {{A No-Op Payload Format for RTP}},
    pagetotal = 12,
    year =      2007,
    month =     may,
    day =       22,
    abstract =  {This document defines an no-op payload format for the Real-time Transport Protocol (RTP). This packet is not played out by receivers. It can be useful as a way to keep Network Address Translator (NAT) bindings and Firewall pinholes open. Other uses are discussed in the document.},
}