Yealink SIP-T2 SERIES Administrator's Manual page 989

Item
This section describes how Yealink IP phones comply with the IETF definition of SIP as
described in RFC 3261.
This section contains compliance information in the following:
RFC and Internet Draft Support

SIP Request

SIP Header

SIP Responses

SIP Session Description Protocol (SDP) Usage

The following RFC's and Internet drafts are supported:
RFC 1321—The MD5 Message-Digest Algorithm

RFC 1889—RTP Media control

RFC 2112—Multipart MIME

RFC 2327—SDP: Session Description Protocol

RFC 2387—The MIME Multipart/Related Content-type

RFC 2543—SIP: Session Initiation Protocol

RFC 2617—Http Authentication: Basic and Digest access authentication

RFC 2782—A DNS RR for specifying the location of services (DNS SRV)

RFC 2806—URLs for Telephone Calls

RFC 2833—RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals

Configurations
voice.headset_send
video.enable
directory.sorted_alphabetically
local_contact.photo.url
local_contact.icon_image.url
local_contact.image.url (only for SIP VP-T49G)
local_contact.icon.url (only for SIP VP-T49G)
local_contact.data_photo_tar.url (only for SIP
VP-T49G)
configuration.url
Appendix
967