Cited in: RFC 3351
2 RFCs mentioned in the text of RFC 3351 (User Requirements for the Session Initiation Protocol (SIP) in Support of Deaf, Hard of Hearing and Speech-impaired Individuals)
| RFC | Title | Status | Date |
|---|---|---|---|
| 2119 | Key words for use in RFCs to Indicate Requirement Levels | Best Current Practice | March 1997 |
| 3261 | SIP: Session Initiation Protocol | Proposed Standard | July 2002 |