Yealink SIP-T21P User Manual

Index
133
A
About This Guide v
Account Management 54
Account Registration 54
Adding Contacts 31
Adding Groups 29
Administrator password 20
Anonymous Call 95
Anonymous Call Rejection 96
Answering Calls 67
Area Code 59
Attaching Stand 11
Audio Settings 24
Auto Answer 70
Auto Redial 71
Automatic Call Distribution (ACD) 109
B
Basic Network Settings 14
Blacklist 38
Block Out 60
Busy Lamp Field (BLF) 97
C
Call Completion 72
Call Forward 78
Call History Management 42
Call Hold/Resume 74
Call Mute 73
Call Park 89
Call Pickup 90
Call Recording 99
Call Return 73
Call Transfer 84
Call Waiting 86
CE Mark Warning ii
Conference 86
Contact Management 27
Contrast 17
Copyright ii
Customizing Your Phone 17
D
Declaration of Conformity ii
Deleting Contacts 33
Deleting Groups 30
Dial-now 57
Dial Plan 55
Directory 27
Do Not Disturb (DND) 75
Documentations 8
DSS Keys 46
E
Editing Contacts 33
Editing Groups 29
Emergency Number 61
Ending Calls 68
G
General Settings 17
Getting Started 9
H
Hardware Component Instructions 1
Headset Mode Activation/Deactivation 45
Headset Prior 45
Headset Use 45
Hot Desking 101
Hotline 63
I
Icon Instructions 3
Idle screen 16
Importing/Exporting Contact lists 37
In This Guide v
Incoming Intercom Calls 103
Intercom 103
K
Key as Send 21
Keypad Lock 21
L
Language 18
LED Instructions 4
Limitation of Liability 129
Line Keys 46
Live Dialpad 62
Local Conference 87
Local Directory 28
Logo Customization 44
M
Messages 111

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