Yealink SIP-T31G 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-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm