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Yealink T21 Quick Reference Guide

Yealink T21
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Magnet Voice
Yealink T21 phone
Quick Reference Guide
Make a call
Handset Lift Handset + Internal Number
Lift Handset + 9 + External Number
Speaker + Internal Number or + 9 + External Number
Headset + Internal Number or + 9 + External Number
Predial Internet Number + or 9 + External Number +
Directory + Personal Addr Book + .......
Call Lists + List of calls + .......
Redial
Make a second Call HOLD + Internal Number or HOLD + 9 +
while on a call External Number
Conference During second call press CONFERENCE
Answer a call
Handset Lift Handset
Speaker or
Headset or
answer a second call
Handle a Call
Hold/Retrieve HOLD
Transfer TRAN+ Number + Hangup
Park/Unpark PARK
Switch Between Calls L1 To L4
Forward
Forward All Calls/ Forward key needs to be activated
Clear Forward
Forward on busy + Call Forward + Forward on busy
Forward no Answer + Call Forward + Forward no Answer
Block Outgoing PRIVATE NO. LED ON when active
Identity
Voicemail
Listen to voicemails VOICEMAIL + Mailbox + Message List + ...
Change Greeting MESSAGE
Remote Access Dial # during voicemail greeting + PIN
Send Send
Phone Bk
PBX
RD
Answer
Answer
Answer
PBX
PBX

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Yealink T21 Specifications

General IconGeneral
Power over Ethernet (PoE)Yes (IEEE 802.3af)
Number of SIP Accounts2
Ethernet Ports2 (10/100 Mbps)
VoIP ProtocolsSIP
Voice CodecsG.711, G.729, iLBC
SpeakerphoneYes
HD VoiceYes
Power Supply5V DC
Operating Temperature0°C to 40°C
Humidity10% to 95% (non-condensing)

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