Yealink SIP-T21P User Manual

User Guide for the SIP-T21P IP Phone
132
Time Zone
Time Zone Name
+01:00
Hungary(Budapest)
+01:00
Italy(Rome)
+01:00
Luxembourg(Luxembourg)
+01:00
Macedonia(Skopje)
+01:00
Netherlands(Amsterdam)
+01:00
Namibia(Windhoek)
+02:00
Estonia(Tallinn)
+02:00
Finland(Helsinki)
+02:00
Gaza Strip(Gaza)
+02:00
Greece(Athens)
+02:00
Israel(Tel Aviv)
+02:00
Jordan(Amman)
+02:00
Latvia(Riga)
+02:00
Lebanon(Beirut)
+02:00
Moldova(Kishinev)
+02:00
Russia(Kaliningrad)
+02:00
Romania(Bucharest)
+02:00
Syria(Damascus)
+02:00
Turkey(Ankara)
+02:00
Ukraine(Kyiv, Odessa)
+02:00
Syria(Damascus)
+03:00
East Africa Time
+03:00
Iraq(Baghdad)
+03:00
Russia(Moscow)
+03:30
Iran(Teheran)
+04:00
Armenia(Yerevan)
+04:00
Azerbaijan(Baku)
+04:00
Georgia(Tbilisi)
+04:00
Kazakhstan(Aktau)
+04:00
Russia(Samara)
+04:30
Afghanistan
+05:00
Kazakhstan(Aqtobe)
+05:00
Kyrgyzstan(Bishkek)
+05:00
Pakistan(Islamabad)
+05:00
Russia(Chelyabinsk)
+05:30
India(Calcutta)
+06:00
Kazakhstan(Astana, Almaty)
+06:00
Russia(Novosibirsk, Omsk)
+07:00
Russia(Krasnoyarsk)
+07:00
Thailand(Bangkok)
+08:00
China(Beijing)
+08:00
Singapore(Singapore)
+08:00
Australia(Perth)
+09:00
Korea(Seoul)
+09:00
Japan(Tokyo)
+09:30
Australia(Adelaide)
+09:30
Australia(Darwin)
+10:00
Australia(Sydney, Melbourne, Canberra)
+10:00
Australia(Brisbane)
+10:00
Australia(Hobart)
+10:00
Russia(Vladivostok)
+10:30
Australia(Lord Howe Islands)
+11:00
New Caledonia(Noumea)
+12:00
New Zealand(Wellington, Auckland)
+12:45
New Zealand(Chatham Islands)
+13:00
Tonga(Nukualofa)

Yealink SIP-T21P Specifications

General

Display	132 x 64-pixel graphical LCD
Network	10/100 Mbps Ethernet
SIP Accounts	2
Wall Mountable	Yes
Audio Features	HD Voice
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Voice Codecs	G.711(A/μ), G.729AB, G.726, G.722
Phonebook	1000 entries
Call Features	Call hold, call waiting, call transfer, call forward, 3-way conferencing
Security	SRTP, TLS, 802.1x, HTTPS
Ethernet Ports	2 x RJ45 10/100 Mbps
Power Supply	Power over Ethernet (PoE) or optional power adapter
Operating Humidity	10% to 90% (non-condensing)
Languages	Supports multiple languages
PoE	Yes (802.3af)
Operating Temperature	-10°C to 50°C