Cited in: RFC 5478
2 RFCs mentioned in the text of RFC 5478 (IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespaces)
| RFC | Title | Status | Date |
|---|---|---|---|
| 2119 | Key words for use in RFCs to Indicate Requirement Levels | Best Current Practice | March 1997 |
| 4412 | Communications Resource Priority for the Session Initiation Protocol (SIP) | Proposed Standard | February 2006 |