Yealink SIP-T27G User Manual

User Guide for the SIP-T27G IP Phone
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The default value is 10, you can set to 1-30.
5. Click Confirm to accept the change.
Backlight
You can configure the backlight to adjust the brightness of the LCD screen.
You can configure the backlight status on the LCD screen from the following options:
 Always On: Backlight is on permanently.
 Always Off: Backlight is off permanently.
 15s, 30s, 1min, 2min, 5min, 10min or 30min: Backlight is turned off when the phone is
inactive after the designated time (in seconds).
You can also change the intensity of the LCD screen of EXP20 connected to the SIP-T27G IP
phone.
To configure the backlight via phone user interface:
1. Press Menu->Settings->Basic Settings->Display->Backlight.
2. Press or , or the Switch soft key to select the desired time from the Backlight
Time field.
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Yealink SIP-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm