%% You should probably cite draft-ietf-asap-siptrunkingcapability-link instead of this I-D.
@techreport{engi-siptrunkingcapability-link-01,
    number =    {draft-engi-siptrunkingcapability-link-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-engi-siptrunkingcapability-link/01/},
    author =    {Kaustubh Inamdar and Sreekanth Narayanan and Derek Engi and Gonzalo Salgueiro},
    title =     {{The 'sipTrunkingCapability' Link Relation Type}},
    pagetotal = 5,
    year =      2022,
    month =     jul,
    day =       24,
    abstract =  {This specification defines the 'sipTrunkingCapability' link relation type that may be used for the retrieval of capabilities and configuration requirements from Internet Telephony Service Providers (ITSPs). A Session Initiation Protocol (SIP) trunking capability set is defined to allow the transfer of technical requirements needed for seamless peering between SIP-based enterprise telephony networks and ITSPs where an exchange of parameters and configuration information is required.},
}