Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
290
Supported
Devices
T57W, T54W, T48U, T48S, T46U, T46S
Parameter
phone_setting.icon.delete
[1]
<y0000000000xx>.cfg
Description
It deletes all custom icons.
Permitted
Values
http://localhost/all
Default
Blank
Supported
Devices
T57W, T54W, T48U, T48S, T46U, T46S
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Warnings Display
When one of the following situations occurs:
l The default password is being used
l Account registration failed
l Provisioning credentials are wrong
l Network is unavailable
l Line on redundancy registration
On the T42S/T42U/T41S phones, a warning message appears on the idle screen.
On the other phones, a warning icon appears in the status bar.
Topic
Warnings Display Configuration
Warnings Display Configuration
The following table lists the parameter you can use to configure the warnings display.
Parameter
phone_setting.warnings_display.mode <y0000000000xx>.cfg
Description
It enables or disables the phone to display warnings.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Out of Service
When the network of the phone is disconnected and the warning message appears on the screen, the phone will
play an alert tone.
Topic
Out of Service Configuration
Out of Service Configuration
The following table lists the parameter you can use to configure out of service.

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