Yealink SIP-T52S Administrator's Guide

Appendix
1053
Appendix H: SIP (Session Initiation Protocol)
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
RFC and Internet Draft Support
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
 RFC 2915—The Naming Authority Pointer (NAPTR) DNS Resource Record
 RFC 2976—The SIP INFO Method
 RFC 3087—Control of Service Context using SIP Request-URI
 RFC 3261—SIP: Session Initiation Protocol (replacement for RFC 2543)
 RFC 3262—Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
 RFC 3263—Session Initiation Protocol (SIP): Locating SIP Servers
 RFC 3264—An Offer/Answer Model with the Session Description Protocol (SDP)
 RFC 3265—Session Initiation Protocol (SIP) - Specific Event Notification
 RFC 3266—Support for IPv6 in Session Description Protocol (SDP)
 RFC 3310—HTTP Digest Authentication Using Authentication and Key Agreement (AKA)
 RFC 3311—The Session Initiation Protocol (SIP) UPDATE Method
 RFC 3312—Integration of Resource Management and SIP

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm