Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Format Description
For example, 2016, 2017, 2018…
M/MM
It represents a two-digit month.
For example, 01, 02,…, 12
MMM
It represents the abbreviation of the month.
For example, Jan, Feb,…, Dec
M is used more than three times (for example, MMMM)
It represents the long format of the month.
For example, January, February,…, December
D is used once or more than once (for example, DD)
It represents a two-digit day.
For example, 01, 02,…, 31
W/WW
It represents the abbreviation of the day of week.
For example, Mon, Tue,…, Sun
W is used more than twice (for example, WWW,
WWWW)
It represents the long format of the day of week.
For example, Monday, Tuesday,…, Sunday
Idle Clock Display
Idle clock is displayed on the center of the idle screen by default. You can hide the idle clock, and then the time and
date are displayed in the right of the status bar.
It is only applicable to T54W phones.
Topic
Idle Clock Display Configuration
Idle Clock Display Configuration
The following table lists the parameter you can use to configure the idle clock display.
Parameter
phone_setting.idle_clock_display.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display the idle clock.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
T54W
Phone UI
Menu > Basic > Display > Idle Clock > Idle Clock Display
Logo Customization
Since a logo is a visual entity signifying an organization or company, you can upload a custom logo shown on the
LCD screen. The logo screen and the idle screen display alternately.
The following shows a system logo (Yealink logo) displayed on T27G:

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