@techreport{sparks-sip-service-examples-00,
    number =    {draft-sparks-sip-service-examples-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-sparks-sip-service-examples/00/},
    author =    {Steve Donovan and Robert Sparks and Kevin Summers and Chris Cunningham},
    title =     {{SIP Telephony Service Examples With Call Flows
}},
    pagetotal = 84,
    year =      1999,
    month =     oct,
    day =       21,
    abstract =  {This is an informational draft showing one implementation of a set of traditional telephony services using the Session Initiation Protocol. Diagrams of the SIP conversations and the complete SIP messages are provided.},
}