Yealink SIP-T2xP Administrator's Manual page 450

Administrator's Guide for SIP-T2xP and SIP-T19P IP Phones
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
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SIP Responses
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SIP Session Description Protocol (SDP) Usage
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The following RFC's and Internet drafts are supported:
RFC 1321—The MD5 Message-Digest Algorithm
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RFC 1889—RTP Media control
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RFC 2112—Multipart MIME
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RFC 2246—The TLS Protocol Version 1.0
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RFC 2327—SDP: Session Description Protocol
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RFC 2543—SIP: Session Initiation Protocol
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RFC 2616—Hypertext Transfer Protocol -- HTTP/1.1
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RFC 2617—Http Authentication: Basic and Digest access authentication
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RFC 2782—A DNS RR for specifying the location of services (DNS SRV)
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RFC 2806—URLs for Telephone Calls
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RFC 2833—RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
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RFC2915—The Naming Authority Pointer (NAPTR) DNS Resource Record
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RFC 3087—Control of Service Context using SIP Request-URI
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RFC 3261—SIP: Session Initiation Protocol (replacement for RFC 2543)
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RFC 3262—Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
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RFC 3263—Session Initiation Protocol (SIP): Locating SIP Servers
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RFC 3264—An Offer/Answer Model with the Session Description Protocol (SDP)
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RFC 3265—Session Initiation Protocol (SIP) - Specific Event Notification
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RFC 3266—Support for IPv6 in Session Description Protocol (SDP)
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RFC 3310—HTTP Digest Authentication Using Authentication and Key Agreement
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(AKA)
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