Yealink SIP-T52S Administrator's Guide

Table of Contents
xxv
System Log Issues ....................................................................................................................................................... 994
Resetting Issues ............................................................................................................................................................ 995
Rebooting Issues .......................................................................................................................................................... 998
Protocols and Ports Issues .................................................................................................................................... 1001
Password Issues ......................................................................................................................................................... 1004
Logo Issues .................................................................................................................................................................. 1004
Power and Startup Issues ...................................................................................................................................... 1004
Other Issues ................................................................................................................................................................ 1005
Appendix................................................................................... 1009
Appendix A: Glossary ........................................................................................................................................................ 1009
Appendix B: Time Zones ................................................................................................................................................. 1011
Appendix C: Trusted Certificates ................................................................................................................................. 1012
Appendix D: Configuring DSS Keys ............................................................................................................................ 1014
Appendix E: Auto Provisioning Flowchart (Keep User Personalized Configuration Settings) ........... 1036
Appendix F: Static Settings ............................................................................................................................................ 1037
Appendix G: Reading Icons ............................................................................................................................................ 1043
Appendix H: SIP (Session Initiation Protocol)......................................................................................................... 1053
RFC and Internet Draft Support .......................................................................................................................... 1053
SIP Request.................................................................................................................................................................. 1056
SIP Header ................................................................................................................................................................... 1057
SIP Responses ............................................................................................................................................................ 1058
SIP Session Description Protocol (SDP) Usage ............................................................................................. 1061
Appendix I: SIP Call Flows ............................................................................................................................................... 1061
Successful Call Setup and Disconnect ............................................................................................................. 1062
Unsuccessful Call Setup—Called User is Busy ............................................................................................... 1064
Unsuccessful Call Setup—Called User Does Not Answer ......................................................................... 1066
Successful Call Setup and Call Hold ................................................................................................................. 1068
Successful Call Setup and Call Waiting ........................................................................................................... 1071
Call Transfer without Consultation .................................................................................................................... 1075
Call Transfer with Consultation ........................................................................................................................... 1079
Always Call Forward ................................................................................................................................................. 1084
Busy Call Forward ..................................................................................................................................................... 1086
No Answer Call Forward ........................................................................................................................................ 1089
Call Conference ......................................................................................................................................................... 1092
Index ......................................................................................... 1097

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