List of RFCs Supported by Asterisk

Is there any official list that gives information on what RFCs Asterisk (Partially or Fully)
Looking into chan_sip.c shows some RFC like

By looking in to chan_sip.c it seems asterisk supports at least following RFC (Partial or full don’t know)
RFC 3261 :Implementation of RFC 3261 - without S/MIME, and experimental TCP and TLS support
RFC 4235 :”Sip Dialog Event package
RFC 3863 :
RFC 3842 :
RFC 2833 DTMF
RFC 3581NAT
RFC 3891
RFC 2976 (INFO)
RFC 3262 (PRACK)
RFC 3265 (SUBSCRIBE, NOTIFY)
RFC 3311 (UPDATE)
RFC 3428 (MESSAGE)
RFC 3515 (REFER)
RFC 3903 (PUBLISH)

is there other source of information or list?