Yealink SIP-T27G 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-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm