Yealink SIP-T40G User Manual

Customizing Your Phone
65
If it is set to other values except 0 (for example, 5), the phone will be locked when the
phone is inactive in the Idle screen for the designated time (in seconds).
6. Press Save.
When the phone is locked, the lock icon will display on the LCD screen.
Phone Lock activation is configurable via web user interface at the path Features->Phone Lock.
Changing the Phone Unlock PIN
Procedure:
1. Navigate to Menu->Basic->Change PIN.
For the SIP-T42S/T42G/T41S/T41P/T40G/T40P IP phone, navigate to
Menu->Settings->Basic Settings->Change PIN.
2. Enter the desired value in the Old PIN, New PIN and Confirm PIN field respectively.
3. Press Save.
Phone Lock PIN is configurable via web user interface at the path Features->Phone Lock.
Note
The unlock PIN length must be less than 15 digits.
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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