Yealink SIP-T40G User Manual

User Guide for T4 Series IP Phones
130
Deactivating DND in Custom Mode
You can deactivate DND to receive incoming calls on the specific account.
Procedure:
1. Press DND when the phone is idle.
2. Select a desired account.
3. Select Disabled from the DND Status field.
On the SIP-T48S/T48G IP phone, tap the Off radio box of the DND Status field.
4. Press Save.
Configuring DND Emergency and Authorized Numbers
You can receive incoming calls from authorized numbers when DND is activated.
Procedure:
1. Click Features->Forward&DND.
2. Select Enabled from the DND Emergency field.
3. Enter the authorized numbers in the DND Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4. Click Confirm.
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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