Yealink SIP-T40G User Manual

User Guide for T4 Series IP Phones
126
- Select the desired call, and then press the HOLD key again or Resume.
- Select the desired call, and then press the corresponding line key.
Do Not Disturb (DND)
You can activate DND to reject incoming calls automatically on the phone. The prompt message
“n New Missed Call(s)” (“n” indicates the number of missed calls, for example, 1 New Missed
Call(s)) will appear on the LCD screen, and callers will receive a busy message. All calls you
receive while DND is activated are logged to your missed calls list.
Note
When DND feature is activated, the IP phone supports displaying a large DND icon on the Idle
screen.
DND is configurable via web user interface at the path Feautres->Forward&DND.
Note
The message will display only if Missed Call Log for the line is enabled. Missed call log is
configurable via web user interface at the path Account->Basic.
You cannot activate or deactivate DND when DND feature is disabled. Contact your system
administrator for more information.
Large DND icon should be pre-configured by your system administrator.
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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