Yealink SIP-T40G Administrator's Guide

Phone Provisioning
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Example: Keeping User’s Personalized Settings
This section shows you how to keep the personalized settings.
Parameters Settings:
static.auto_provision.custom.protect =1
After provisioning, if the users make changes via the phone user interface or web user interface, the MAC-local.cfg
file with non-static personal settings generates locally.
Scenario: Keeping user’s personalized settings when upgrading the firmware
If you set “ static.auto_provision.custom.sync =1 ”, then the phones attempt to upload the MAC-local.cfg file to the pro-
visioning server each time the file updates. When performing auto provisioning, they download their own MAC-

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