Yealink SIP-T27G Administrator's Guide

Phone Provisioning
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Template File File Name Description Reference in Section
board Input
Method File
keyboard_lang.xml
keyboard_ime_*.xml
keyboard_layout_*.xml
method.
Input Method File Cus-
tomization
Replace Rule
Template
DialPlan.xml Customize replace rules for the dial plan.
Replace Rule File
Customization
Dial Now Tem-
plate
DialNow.xml Customize dial now rules for the dial plan.
Dial Now File Cus-
tomization
Softkey Layout
Template
CallFailed.xml
CallIn.xml
Connecting.xml
Dialing.xml
RingBack.xml
Talking.xml
Customize soft key layout for different call
states.
Softkey Layout File
Customization
Directory Tem-
plate
favorite_setting.xml Customize the directory list.
Directory List File Cus-
tomization
Super Search
Template
super_search.xml Customize the search source list.
Search Source File
Customization
Local Contact File contact.xml Add or modify multiple local contacts.
Local Contact File
Customization
Remote Phone
Book Template
Department.xml
Menu.xml
Add or modify multiple remote contacts.
Remote Phone Book
File Customization
Screen Saver
Template
CustomScreenSaver.xml
Customize the XML items (for example, noti-
fications, company logo) which will be dis-
played on the screen saver.
Screensaver Display
Customization
Files Download Process
When you provision the phones, the phones will request to download the boot files, configuration files and resource
files from the provisioning server according to the following flowchart:

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