Jonathan D. Rosenberg, Henning Schulzrinne, Paul Kyzivat. Caller Preferences for the Session Initiation Protocol (SIP). RFC, 3841:1-26, August 2004. [doi]
@article{rfc3841,
title = {Caller Preferences for the Session Initiation Protocol (SIP)},
author = {Jonathan D. Rosenberg and Henning Schulzrinne and Paul Kyzivat},
year = {2004},
month = {August},
doi = {10.17487/RFC3841},
url = {https://doi.org/10.17487/RFC3841},
researchr = {https://researchr.org/publication/rfc3841},
cites = {0},
citedby = {0},
journal = {RFC},
volume = {3841},
pages = {1-26},
}