Yealink SIP-T40G 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-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm