%% You should probably cite rfc6228 instead of this I-D. @techreport{ietf-sipcore-199-06, number = {draft-ietf-sipcore-199-06}, 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-sipcore-199/06/}, author = {Christer Holmberg}, title = {{Session Initiation Protocol (SIP) Response Code for Indication of Terminated Dialog}}, pagetotal = 14, year = 2011, month = mar, day = 3, abstract = {This specification defines a new Session Initiation Protocol (SIP) response code, 199 Early Dialog Terminated, that a SIP forking proxy and a User Agent Server (UAS) can use to indicate to upstream SIP entities (including the User Agent Client (UAC)) that an early dialog has been terminated, before a final response is sent towards the SIP entities. {[}STANDARDS-TRACK{]}}, }