@techreport{donovan-sipping-service-override-01,
    number =    {draft-donovan-sipping-service-override-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-donovan-sipping-service-override/01/},
    author =    {C Sivachelvan and Steve Donovan},
    title =     {{The Service-State Header}},
    pagetotal = 21,
    year =      2006,
    month =     jun,
    day =       29,
    abstract =  {This document proposes a new header for the Session Initiation Protocol. This header, the Service-State header, is used to communicate application state between two SIP elements. Note: The name of the file will be updated to be consistent with the proposed header name in the next revision of the draft.},
}