Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
548
Parameter
features.reset_by_long_press_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to reset to factory by long pressing OK/√key.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
features.factory_pwd_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to prompt for the administrator password when you long press the
OK/√key to perform a factory reset on the idle screen.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Case Scen-
ario
Reset the phone to factory in the User mode
Set the following:
features.factory_pwd_enable = 0
static.security.var_enable = 1
When the phone is in the User mode, users can reset the phone to factory settings by long pressing
the OK/√key.
Resetting the IP phone to Default Factory Settings
Procedure
1. Click Settings > Upgrade.
2. Click Reset to Factory in the Reset to Factory field.
The web user interface prompts the message “Do you want to reset to factory?”.
3. Click OK to confirm the resetting.
The phone will be reset to factory successfully after startup.
Note: Reset of your phone may take a few minutes. Do not power off until the phone starts up successfully.
Resetting the IP phone to Custom Factory Settings
After you enable the custom factory feature, you can import the custom factory configuration file, and then reset the
IP phone to custom factory settings.
Procedure
1. From the web user interface, click Settings > Configuration.
2. In the Import Factory Config block, click Browse to locate the custom factory configuration file from your local
system.
3. Click Import.
4.
After the custom factory configuration file is imported successfully, you can reset the IP phone to custom factory
settings.
Topic
Custom Factory Configuration
Custom Factory Configuration
The following table lists the parameters you can use to configure a custom factory.

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