| RFC 2976 |
The SIP INFO Method |
| RFC 2848 |
Extensions for IP Access to Telephone Call Services |
| RFC 3050 |
CGI for SIP |
| RFC 3262 |
Reliability of Provisional Responses |
| RFC 3263 |
Locating SIP Servers |
| RFC 3265 |
SIP-Specific Event Notification |
| RFC 3311 |
UPDATE Method |
| RFC 3312 |
Integration of Resource Management and SIP |
| RFC 3313 |
Private SIP Extensions for Media Authorization |
| RFC 3319 |
DHCPv6 Options for SIP Servers |
| RFC 3323 |
A Privacy Mechanism for SIP |
| RFC 3324 |
Short Term Requirements for Network Asserted Identity |
| RFC 3325 |
Private Extensions to SIP for Asserted Identity within Trusted Networks |
| RFC 3326 |
The Reason Header Field |
| RFC 3327 |
Extension Header Field for Registering Non-Adjacent Contacts |
| RFC 3329 |
Security Mechanism Agreement |
| RFC 3361 |
DHCP-for-IPv4 Option for SIP Servers |
| RFC 3372 |
SIP for Telephones (SIP-T): Context and Architectures |
| RFC 3398 |
ISUP to SIP Mapping |
| RFC 3428 |
SIP Extension for Instant Messaging |
| RFC 3455 |
Private Header Extensions for 3GPP |
| RFC 3515 |
The Session Initiation Protocol (SIP) Refer Method |
| RFC 3578 |
Mapping ISUP Overlapped Signalling to SIP |
| RFC 3581 |
Extension to SIP for Symmetric Response Routing |
| RFC 3608 |
Extension Header Field for Service Route Discovery During Registration |
| RFC 3680 |
SIP Event Package for Registrations |
| RFC 3840 |
Indicating User Agent Capabilities in SIP |
| RFC 3841 |
Caller Preferences for SIP |
| RFC 3842 |
Message Summary and Message Waiting Indication Event Package |
| RFC 3856 |
Presence Event Package |
| RFC 3857 |
A Watcher Information Event Template-Package |
| RFC 3891 |
"Replaces" Header |
| RFC 3892 |
Referred-By Mechanism |
| RFC 3893 |
SIP Authenticated Identity Body (AIB) |
| RFC 3911 |
SIP "Join" Header |
| RFC 3903 |
Event State Publication |
| RFC 3959 |
Early Session Disposition Type |
| RFC 3960 |
Early Media and Ringing Tone Generation |
| RFC 4028 |
Session Timers in the Session Initiation Protocol (SIP) |
| RFC 4235 |
An INVITE-Initiated Dialog Event Package for SIP |
| RFC 4244 |
Extension for Request History Information |
| RFC 4320 |
Actions Addressing Identified Issues with the SIP Non-INVITE Transaction |
| RFC 4411 |
Extending the SIP Reason Header for Preemption Events |
| RFC 4412 |
Communications Resource Priority for SIP |
| RFC 4474 |
Enhancements for Authenticated Identity Management in SIP |
| RFC 4483 |
A Mechanism for Content Indirection in SIP |
| RFC 4488 |
Suppression of SIP REFER Method Implicit Subscription |
| RFC 4575 |
SIP Event Package for Conference State |
| RFC 4662 |
SIP Event Notification Extension for Resource Lists |
| RFC 4730 |
Event Package for KPML |
| RFC 4780 |
MIB for SIP |
| RFC 4904 |
Representing Trunk Groups in tel/sip URIs |
| RFC 4916 |
Connected Identity in SIP |
| RFC 4967 |
Dial String Parameter for the SIP URI |
| RFC 4975 |
Message Session Relay Protocol (MSRP) |
| RFC 4976 |
Relay Extension for MSRP |
| RFC 5079 |
Rejecting Anonymous Requests in SIP |
| RFC 5196 |
SIP User Agent Capability Extension to Presence Information Data Format (PIDF) |
| RFC 5263 |
SIP Extension for Partial Notification of Presence Information |
| RFC 5264 |
Publication of Partial Presence Information |
| RFC 5478 |
IANA Registration of new SIP Resource-Priority Namespaces |
| RFC 5509 |
IANA Registration Instant Messaging and Presence DNS SRV RRs for SIP |
