%% You should probably cite rfc6135 instead of this I-D.
@techreport{ietf-simple-msrp-acm-10,
    number =    {draft-ietf-simple-msrp-acm-10},
    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-simple-msrp-acm/10/},
    author =    {Christer Holmberg and Staffan Blau},
    title =     {{An Alternative Connection Model for the Message Session Relay Protocol (MSRP)}},
    pagetotal = 8,
    year =      2010,
    month =     dec,
    day =       3,
    abstract =  {This document defines an alternative connection model for Message Session Relay Protocol (MSRP) User Agents (UAs); this model uses the connection-oriented media (COMEDIA) mechanism in order to create the MSRP transport connection. The model allows MSRP UAs behind Network Address Translators (NATs) to negotiate which endpoint initiates the establishment of the Transmission Control Protocol (TCP) connection, in order for MSRP messages to traverse the NAT. {[}STANDARDS-TRACK{]}},
}