%% You should probably cite rfc6314 instead of this I-D. @techreport{ietf-sipping-nat-scenarios-15, number = {draft-ietf-sipping-nat-scenarios-15}, 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-sipping-nat-scenarios/15/}, author = {Gonzalo Camarillo and Francois Audet and Jonathan Rosenberg and Chris Boulton}, title = {{NAT Traversal Practices for Client-Server SIP}}, pagetotal = 60, year = 2011, month = feb, day = 2, abstract = {Traversal of the Session Initiation Protocol (SIP) and the sessions it establishes through Network Address Translators (NATs) is a complex problem. Currently, there are many deployment scenarios and traversal mechanisms for media traffic. This document provides concrete recommendations and a unified method for NAT traversal as well as documents corresponding flows. This document is not an Internet Standards Track specification; it is published for informational purposes.}, }