Cited in: RFC 3581
5 RFCs mentioned in the text of RFC 3581 (An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing)
| 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 |
| 3327 | Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts | Proposed Standard | December 2002 |
| 3424 | IAB Considerations for UNilateral Self-Address Fixing (UNSAF) Across Network Address Translation | Informational | November 2002 |
| 3489 | STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) | Proposed Standard | March 2003 |