IETF RFCs Supported by Lync

I was responding to an RFP, and one of the questions was a list of the IETF RFCs that Lync supported.  There didn't seem to be a central list anywhere, so I compiled a list myself.  If you're in a similar situation where you need this kind of info, hopefully this will help!  Much of this was taken from Microsoft's official protocol documentation at http://msdn.microsoft.com/en-us/library/cc307282(v=office.12).aspx.  If the RFC was listed in the Normative References section, I added it here.  The RFC may not be followed to the letter, and may have been added on to as well.
Any additions or corrections would be greatly appreciated. 

RFC #	Description	Relates To	Link
RFC 1321	The MD5 Message-Digest Algorithm	Security	http://tools.ietf.org/html/rfc1321
RFC 2045	Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies	Conferencing	http://tools.ietf.org/html/rfc2045
RFC 2104	HMAC: Keyed-Hashing for Message Authentication	Security	http://tools.ietf.org/html/rfc2104
RFC 2111	Content-ID and Message-ID Uniform Resource Locators	Telephony	http://tools.ietf.org/html/rfc2111
RFC 2118	Microsoft Point-To-Point Compression (MPPC) Protocol	Base	http://tools.ietf.org/html/rfc2118
RFC 2132	DHCP Options and BOOTP Vendor Extensions	Base	http://tools.ietf.org/html/rfc2132
RFC 2141	URN Syntax	Base	http://tools.ietf.org/html/rfc2141
RFC 2190	RTP Payload Format for H.263 Video Streams	Media	http://tools.ietf.org/html/rfc2190
RFC 2198	RTP Payload for Redundant Audio Data	Media	http://tools.ietf.org/html/rfc2198
RFC 2246	The TLS Protocol Version 1.0	Security	http://tools.ietf.org/html/rfc2246
RFC 2315	PKCS #7: Cryptographic Message Syntax Version 1.5	Security	http://tools.ietf.org/html/rfc2315
RFC 2459	Internet X.509 Public Key Infrastructure Certificate and CRL Profile	Security	http://tools.ietf.org/html/rfc2459
RFC 2474	QoS Differentiated Services	Network	http://tools.ietf.org/html/rfc2474
RFC 2716	PPP EAP TLS Authentication Protocol	Security	http://tools.ietf.org/html/rfc2716
RFC 2743	Generic Security Service Application Program Interface v2, Update 1	Security	http://tools.ietf.org/html/rfc2743
RFC 2782	A DNS RR for specifying the location of services (DNS SRV)	Base	http://tools.ietf.org/html/rfc2782
RFC 2818	HTTP Over TLS	Base	http://tools.ietf.org/html/rfc2818
RFC 2976	SIP INFO Method	Base	http://tools.ietf.org/html/rfc2976
RFC 2986	PKCS#10: Certificate Request Syntax Specification	Security	http://tools.ietf.org/html/rfc2986
RFC 3261	Session Initiation Protocol (SIP)	Base	http://tools.ietf.org/html/rfc3261
RFC 3262	Reliability of Provisional Responses in SIP	Base	http://tools.ietf.org/html/rfc3262
RFC 3264	An Offer/Answer Model with the Session Description Protocol (SDP)	Conferencing	http://tools.ietf.org/html/rfc3264
RFC 3265	SIP-Specific Event Notification	Base	http://tools.ietf.org/html/rfc3265
RFC 3311	SIP UPDATE Method	Base	http://tools.ietf.org/html/rfc3311
RFC 3323	A Privacy Mechanism for the Session Initiation Protocol (SIP)	Base	http://tools.ietf.org/html/rfc3323
RFC 3325	Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks	Telephony	http://tools.ietf.org/html/rfc3325
RFC 3326	The REASON Header Field for SIP	Base	http://tools.ietf.org/html/rfc3326
RFC 3327	SIP Extension Header Field for Registering Non-Adjacent Contacts	Base	http://tools.ietf.org/html/rfc3327
RFC 3350	Real-time protocol for media	Media	http://tools.ietf.org/html/rfc3350
RFC 3361	DHCP option for SIP servers	Telephony	http://tools.ietf.org/html/rfc3361
RFC 3389	Real-Time Transport Protocol (RTP) Payload for Comfort Noise (CN)	Telephony	http://tools.ietf.org/html/rfc3389
RFC 3420	Internet Media Type message/sipfrag	Media	http://tools.ietf.org/html/rfc3420
RFC 3428	Session Initiation Protocol (SIP) Extension for Instant Messaging	Base	http://tools.ietf.org/html/rfc3428
RFC 3515	SIP REFER Method	Base	http://tools.ietf.org/html/rfc3515
RFC 3550	RTP: A Transport Protocol for Real-Time Applications	Media	http://tools.ietf.org/html/rfc3550
RFC 3551	RTP Profile for Audio and Video Conferences with Minimal Control	Media	http://tools.ietf.org/html/rfc3551
RFC 3581	SIP Symmetric Response Routing	Base	http://tools.ietf.org/html/rfc3581
RFC 3605	Real Time Control Protocol (RTCP) Attribute in Session Description Protocol (SDP)	Media	http://tools.ietf.org/html/rfc3605
RFC 3611	RTP Control Protocol Extended Reports (RTCP XR)	Media	http://tools.ietf.org/html/rfc3611
RFC 3629	UTF-8, A Transformation Format of ISO 10646	Conferencing	http://tools.ietf.org/html/rfc3629
RFC 3711	Secure real-time protocol for media	Media	http://tools.ietf.org/html/rfc3711
RFC 3761	Telephone Number Mapping (ENUM)	Telephony	http://tools.ietf.org/html/rfc3761
RFC 3840	Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)	Base	http://tools.ietf.org/html/rfc3840
RFC 3842	A Message Summary and Message Waiting Indication Event	Telephony	http://tools.ietf.org/html/rfc3842
RFC 3852	Cryptographic Message Syntax (CMS)	Security	http://tools.ietf.org/html/rfc3852
RFC 3863	Presence Information Data Format (PIDF)	Base	http://tools.ietf.org/html/rfc3863
RFC 3891	SIP REPLACES Header	Telephony	http://tools.ietf.org/html/rfc3891
RFC 3892	SIP Referred-by Mechanism	Telephony	http://tools.ietf.org/html/rfc3892
RFC 3960	Early Media and Ringing Tone Generation for SIP	Telephony	http://tools.ietf.org/html/rfc3960
RFC 3966	Tel URI for Telephone Numbers	Telephony	http://tools.ietf.org/html/rfc3966
RFC 3986	Uniform Resource Identifier (URI): Generic Syntax	Base	http://tools.ietf.org/html/rfc3986
RFC 4028	Session Timers in the Session Initiation Protocol	Conferencing	http://tools.ietf.org/html/rfc4028
RFC 4119	A Presence-based GEOPRIV Location Object Format	e911	http://tools.ietf.org/html/rfc4119
RFC 4120	The Kerberos Network Authentication Service (V5)	Security	http://tools.ietf.org/html/rfc4120
RFC 4121	The Kerberos Version 5 Generic Security Service Application Program Interface (GSS-API) Mechanism: Version 2	Security	http://tools.ietf.org/html/rfc4121
RFC 4122	A Universally Unique Identifier (UUID) URN Namespace	Base	http://tools.ietf.org/html/rfc4122
RFC 4145	TCP-Based Media Transport in the Session Description Protocol (SDP)	Media	http://tools.ietf.org/html/rfc4145
RFC 4235	An INVITE-Initiated Dialog Event Package for SIP	Base	http://tools.ietf.org/html/rfc4235
RFC 4244	An Extension to SIP for Request History Information	Base	http://tools.ietf.org/html/rfc4244
RFC 4353	A Framework for Conferencing with the Session Initiation Protocol (SIP)	Conferencing	http://tools.ietf.org/html/rfc4353
RFC 4480	RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)	Base	http://tools.ietf.org/html/rfc4480
RFC 4559	SPNEGO-based Kerberos and NTLM HTTP Authentication in Microsoft Windows	Security	http://tools.ietf.org/html/rfc4559
RFC 4566	SDP: Session Description Protocol	Media	http://tools.ietf.org/html/rfc4566
RFC 4568	Session Description Protocol (SDP) Security Descriptions for Media Streams	Media	http://tools.ietf.org/html/rfc4568
RFC 4571	Framing Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) Packets over Connection-Oriented Transport	Media	http://tools.ietf.org/html/rfc4571
RFC 4574	The Session Description Protocol (SDP) Label Attribute	Conferencing	http://tools.ietf.org/html/rfc4574
RFC 4575	A Session Initiation Protocol (SIP) Event Package for Conference State	Conferencing	http://tools.ietf.org/html/rfc4575
RFC 4733	RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals	Telephony	http://tools.ietf.org/html/rfc4733
RFC 5139	Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)	e911	http://tools.ietf.org/html/rfc5139
RFC 5245	Interactive Connectivity Establishment (ICE)	Media	http://tools.ietf.org/html/rfc5245
RFC 5280	Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile	Security	http://tools.ietf.org/html/rfc5280
RFC 5389	Session Traversal Utilities for NAT (STUN)	Media	http://tools.ietf.org/html/rfc5389
RFC 5652	Cryptographic Message Syntax (CMS)	Security	http://tools.ietf.org/html/rfc5652
RFC 5766	Traversal Using Relays around NAT (TURN)	Media	http://tools.ietf.org/html/rfc5766
RFC 6797	HTTP Strict Transport Security (HSTS)	Security	http://tools.ietf.org/html/rfc6797