Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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When label length feature is set to Extended:
l For T54W/T46U/T46S/T46G/T29G phones, the display length of the line key label is extended and the characters
are displayed in one line.
l For T57W/T48U/T48S/T48G phones, the characters are displayed in two lines.
When label length feature is set to Mid Range (not applicable to T57W/T48U/T48S/T48G phones):
Topic
Label Length Display Configuration
Label Length Display Configuration
The following table lists the parameters you can use to configure the label length display.
Parameter
features.config_dsskey_length <y0000000000xx>.cfg
Description
It configures the label length displayed on the idle LCD screen for the line key.
Permitted
Values
0-Default
1-Extended

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