Jon Peterson, James M. Polk, Douglas C. Sicker, Hannes Tschofenig. Trait-Based Authorization Requirements for the Session Initiation Protocol (SIP). RFC, 4484:1-15, August 2006. [doi]
@article{rfc4484, title = {Trait-Based Authorization Requirements for the Session Initiation Protocol (SIP)}, author = {Jon Peterson and James M. Polk and Douglas C. Sicker and Hannes Tschofenig}, year = {2006}, month = {August}, doi = {10.17487/RFC4484}, url = {https://doi.org/10.17487/RFC4484}, researchr = {https://researchr.org/publication/rfc4484}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {4484}, pages = {1-15}, }