Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
103
Permitted
Values
String within 32 characters
Default
var
Parameter
static.security.user_password <y0000000000xx>.cfg
Description
It configures the password.
The phone uses “user” as the default user password, "var" as the default var password and “admin” as
the default administrator password.
The valid value format is <username>:<new password>.
Example:
static.security.user_password = user:123 means setting the password of user to 123.
static.security.user_password = admin:456 means setting the password of administrator to 456.
static.security.user_password = var:789 means setting the password of var to 789.
Note: The phones support ASCII characters 32-126(0x20-0x7E) in passwords. You can set the pass-
word to be empty via the web user interface only.
Permitted
Values
String within 32 characters
Default
Blank
Web UI
Security > Password
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Change Password
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Change Password
Note: You cannot change the user password via the phone user interface.
User Access Level Configuration
For more information, refer to Yealink SIP IP Phones Configuration Guide for User Access Level.
The following table lists the parameters you can use to configure the user access level.
Parameter
static.security.var_enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the 3-level access permissions (admin, user, var).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
static.web_item_level.url
[1]
<y0000000000xx>.cfg
Description
It configures the access URL of the file, which defines 3-level access permissions.
Permitted
Values
URL within 511 characters
Default
Blank
Parameter
static.security.default_access_level
[1]
<y0000000000xx>.cfg
Description
It configures the default access level to access the phone user interface.

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