Yealink SIP-T52S Administrator's Guide

Appendix
1055
 RFC 3969—IANA Registry for SIP URI
 RFC 4028—Session Timers in the Session Initiation Protocol (SIP)
 RFC 4083—3GPP Release 5 Requirements on SIP
 RFC 4235—An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol
(SIP)
 RFC 4244—An Extension to the SIP for Request History Information
 RFC 4317—Session Description Protocol (SDP) Offer/Answer Examples
 RFC 4353—A Framework for Conferencing with the SIP
 RFC 4458—SIP URIs for Applications such as Voicemail and Interactive Voice Response
(IVR)
 RFC 4475—Session Initiation Protocol (SIP) Torture
 RFC 4485—Guidelines for Authors of Extensions to the SIP
 RFC 4504—SIP Telephony Device Requirements and Configuration
 RFC 4566—SDP: Session Description Protocol.
 RFC 4568—Session Description Protocol (SDP) Security Descriptions for Media Streams
 RFC 4575—A SIP Event Package for Conference State
 RFC 4579—SIP Call Control - Conferencing for User Agents
 RFC 4583—Session Description Protocol (SDP) Format for Binary Floor Control Protocol
(BFCP) Streams
 RFC 4662—A SIP Event Notification Extension for Resource Lists
 RFC 4730—Event Package for KPML
 RFC 5009—P-Early-Media Header
 RFC 5079—Rejecting Anonymous Requests in SIP
 RFC 5359—Session Initiation Protocol Service Examples
 RFC 5589—Session Initiation Protocol (SIP) Call Control – Transfer
 RFC 5630—The Use of the SIPS URI Scheme in SIP
 RFC 5806—Diversion Indication in SIP
 RFC 5954—Essential Correction for IPv6 ABNF and URI Comparison in RFC 3261
 RFC 6026—Correct Transaction Handling for 2xx Responses to SIP INVITE Requests
 RFC 6141—Re-INVITE and Target-Refresh Request Handling in SIP
 draft-ietf-sip-cc-transfer-05.txt—SIP Call Control - Transfer
 draft-anil-sipping-bla-02.txt—Implementing Bridged Line Appearances (BLA) Using Session
Initiation Protocol (SIP)
 draft-anil-sipping-bla-03.txt—Implementing Bridged Line Appearances (BLA) Using Session
Initiation Protocol (SIP)
 draft-ietf-sip-privacy-00.txt—SIP Extensions for Caller Identity and Privacy, November
 draft-ietf-sip-privacy-04.txt—SIP Extensions for Network-Asserted Caller Identity and
Privacy within Trusted Networks

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