@misc{rfc4967,
    series =    {Request for Comments},
    number =    4967,
    howpublished =  {RFC 4967},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC4967},
    url =       {https://www.rfc-editor.org/info/rfc4967},
    author =    {Brian Rosen},
    title =     {{Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier}},
    pagetotal = 6,
    year =      2007,
    month =     jul,
    abstract =  {RFC 3966 explicitly states that 'tel' URIs may not represent a dial string. That leaves no way specify a dial string in a standardized way. Great confusion exists with the SIP URI parameter "user=phone", and specifically, if it can represent a dial string. This memo creates a new value for the user parameter "dialstring", so that one may specify "user=dialstring" to encode a dial string as a 'sip:' or 'sips:' URI. {[}STANDARDS-TRACK{]}},
}