%% You should probably cite rfc5922 instead of this I-D.
@techreport{ietf-sip-domain-certs-07,
    number =    {draft-ietf-sip-domain-certs-07},
    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-domain-certs/07/},
    author =    {Bell Laboratories and Scott Lawrence and Vijay K. Gurbani},
    title =     {{Domain Certificates in the Session Initiation Protocol (SIP)}},
    pagetotal = 17,
    year =      2010,
    month =     may,
    day =       5,
    abstract =  {This document describes how to construct and interpret certain information in a PKIX-compliant (Public Key Infrastructure using X.509) certificate for use in a Session Initiation Protocol (SIP) over Transport Layer Security (TLS) connection. More specifically, this document describes how to encode and extract the identity of a SIP domain in a certificate and how to use that identity for SIP domain authentication. As such, this document is relevant both to implementors of SIP and to issuers of certificates. {[}STANDARDS-TRACK{]}},
}