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Product specification Yealink SIP-T21 E2 IP phone Black, Gold LCD
Features
Display
Display:
LCD
Touchscreen:
No
Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.
2.3 "
Display resolution:
132 x 64
Phone features
Full duplex:
No
Conference call:
No
Short Message Service (SMS):
No
Phonebook capacity:
1000 entries
Caller ID:
No
Call forwarding:
No
Call waiting:
No
Speed dialling:
No
Call hold:
No
Do not disturb function:
No
Call park:
No
Anonymous call:
No
Anonymous call rejection:
No
Call transfer:
No
Message-waiting indicator (MWI):
No
Camera
Front camera:
No
Audio
Voice codecs:
G.729ab, G.726, G.723.1, G.722, G.711, iLBC
Noise reduction:
No
Microphone mute:
No
Voice activity detection:
No
Comfort noise generation (CNG):
No
Ports & interfaces
Ethernet LAN (RJ-45) ports:
2
RJ-9 ports quantity:
2
Network
Security algorithms:
AES, MD5, SRTP
Ethernet LAN:
No
Networking standards:
IEEE 802.1x, IEEE 802.1Q, IEEE 802.1p
Quality of Service (QoS) support:
No
Syslog:
No
Power
AC adapter input voltage:
100 - 240
AC adapter output voltage:
5
AC adapter output current:
0.6 A
Input frequency:
50 - 60
Weight & dimensions
Package weight:
1100 g
Height:
150 mm
Width:
209 mm
Depth:
188 mm
Package depth:
200 mm
Package height:
121 mm
Package width:
215 mm
Operational conditions
Operating relative humidity (H-H):
10 - 95
Operating temperature (T-T):
-10 - 50
Packaging content
AC adapter included:
No
Cables included:
LAN (RJ-45)
Manual:
No
Number of handles included:
1 pc(s)
Design
Wall mountable:
No
Product colour:
Black, Gold
Mounting:
Desk/Wall
Device lock:
No
Handset type:
Wired handset
Product type:
IP Phone
Management features
Integrated voicemail:
No
Number of programmable keys:
9
Number of function keys:
6
Performance
Dual-Tone Multi-Frequency (DTMF) modes:
SIP info, In-band, Out-of band
Description
Yealink SIP-T21 E2. Product type: IP Phone, Product colour: Black, Gold, Handset type: Wired handset. Dual-Tone Multi-Frequency (DTMF) modes: In-band, Out-of band, SIP info. Phonebook capacity: 1000 entries. Display: LCD, Display diagonal: 5.84 cm (2.3"), Display resolution: 132 x 64 pixels. Voice codecs: G.711, G.722, G.723.1, G.726, G.729ab, iLBC
