@techreport{barnes-acme-service-provider-code-00,
    number =    {draft-barnes-acme-service-provider-code-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-barnes-acme-service-provider-code/00/},
    author =    {Mary Barnes and Chris Wendt},
    title =     {{ACME Identifiers and Challenges for VoIP Service Providers}},
    pagetotal = 7,
    year =      2017,
    month =     oct,
    day =       30,
    abstract =  {This document describes the use of the Entity Code Identifier and token challenge type to enable the Automated Certificate Management Environment (ACME) to issue certificates for VoIP service providers to support Secure Telephony Identity (STI).},
}