Yealink T27P Administrator's Guide

Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
72
0-Off
1-Low
Note: It is only applicable to SIP-T48G/T46G/T29G IP phones.
Web User Interface:
Settings->Preference->Backlight Inactive Level
Phone User Interface:
Menu->Basic->Display->Backlight->Backlight Inactive Level
phone_setting.backlight_time
0, 1, 15, 30, 60, 120, 300, 600
or 1800
Refer to
the
following
content
Description:
Configures the delay time (in seconds) to change the intensity of the LCD screen
when the IP phone is inactive.
For SIP-T48G/T46G/T29G:
0-Always on
15-15s
30-30s
60-60s
120-120s
300-300s
600-600s
1800-1800s
For SIP-T42G/T41P/T27P/T23P/T23G/T21(P) E2:
0-Always on
1-Always off
15-15s
30-30s
60-60s
120-120s
300-300s
600-600s
1800-1800s
If it is set to 60 (60s), the intensity of the LCD screen will be changed when the IP
phone is inactive for 60 seconds.
For SIP-T48G/T46G/T42G/T41P/T29G:
The default value is 0.

Yealink T27P Specifications

General

Wall Mountable	Yes
Local Phonebook	1000 entries
Bluetooth	No
Wi-Fi	No
Gigabit Ethernet	No
Display	3.66" 240x120 pixel graphical LCD with backlight
Audio Features	HD voice, Full-duplex speakerphone
Network	Dual-port 10/100 Ethernet switch
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Power	IEEE 802.3af PoE
Connectivity	2 x RJ45 10/100M Ethernet ports
Voice Codecs	G.711(A/μ), G.722, G.723, G.729AB, G.726
EHS	Supports EHS with Plantronics headsets
Headset Port	Yes
Power Adapter	5V DC (optional)