Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
1012
Time Zone
Time Zone Name
+5
Kazakhstan(Aqtobe), Kyrgyzstan(Bishkek), Pakistan(Islamabad),
Russia(Chelyabinsk)
+5:30
India(Calcutta)
+5:45
Nepal(Katmandu)
+6
Kazakhstan(Astana, Almaty), Russia(Novosibirsk,Omsk)
+6:30
Myanmar(Naypyitaw)
+7
Russia(Krasnoyarsk), Thailand(Bangkok)
+8
Australia(Perth), China(Beijing), Russia(Irkutsk, Ulan-Ude),
Singapore(Singapore)
+8:45
Eucla
+9
Japan(Tokyo), Korea(Seoul), Russia(Yakutsk,Chita)
+9:30
Australia(Adelaide), Australia(Darwin)
+10
Australia(Brisbane), Australia(Hobart),
Australia(Sydney,Melboume,Canberra), Russia(Vladivostok)
+10:30
Australia(Lord Howe Islands)
+11
New Caledonia(Noumea), Russia(Srednekolymsk Time)
+11:30
Norfolk Island
+12
New Zealand(Wellington,Auckland), Russia(Kamchatka Time)
+12:45
New Zealand(Chatham Islands)
+13
Tonga(Nukualofa)
+13:30
Chatham Islands
+14
Kiribati
Appendix C: Trusted Certificates
Yealink IP phones trust the following CAs by default:
 DigiCert High Assurance EV Root CA
 Deutsche Telekom AG Root CA-2
 Equifax Secure Certificate Authority
 Equifax Secure eBusiness CA-1
 Equifax Secure Global eBusiness CA-1
 GeoTrust Global CA
 GeoTrust Global CA2
 GeoTrust Primary CA
 GeoTrust Primary CA G2 ECC
 GeoTrust Universal CA
 GeoTrust Universal CA2
 Thawte Personal Freemail CA
 Thawte Premium Server CA

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