Yealink SIP-T48U Administrator's Guide

Troubleshooting Methods
544
Parameter
static.features.custom_factory_config.enable <y0000000000xx>.cfg
Description
It enables or disables the Custom Factory Configuration feature.
Permitted
Values
0-Disabled
1-Enabled, Import Factory Configuration item will be displayed on the IP phone's web user interface at
the path Settings > Configuration. You can import a custom factory configuration file or delete the
user-defined factory configuration via the web user interface.
Default
0
Parameter
static.custom_factory_configuration.url <y0000000000xx>.cfg
Description
It configures the access URL of the custom factory configuration files.
Note: It works only if “static.features.custom_factory_config.enable” is set to 1 (Enabled) and the file
format of the custom factory configuration file must be *.bin.
Permitted
Values
URL within 511 characters
Default
Blank
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Settings > Configuration > Import Factory Configuration
Other Phones:
Settings > Configuration > Import Factory Config
Deleting the Custom Factory Settings Files
You can delete the user-defined factory configurations via the web user interface.
Procedure
1. From the web user interface, click Settings > Configuration.
2. Click Del/Delete in the Import Factory Config (Import Factory Configuration) field.
The web user interface prompts you whether to delete the user-defined factory configuration.
3. Click OK to delete the custom factory configuration files.
The imported custom factory file will be deleted. The phone will be reset to default factory settings after resetting.
Resetting a Configuration to Default Factory Setting
You can reset a configuration to default factory instead of resetting your phone.
Note: This feature works only when the parameter “static.auto_provision.custom.protect” is set to 1.
Procedure
1.
On the web user interface, click the question mark "?" after each configuration.
2. Click Reset if any change is made before.
Packets Capture
You can capture packet in two ways: capturing the packets via the web user interface or using the Ethernet soft-
ware. You can analyze the packet captured for troubleshooting purpose.
Topics
Capturing the Packets via Web User Interface
Ethernet Software Capturing Configuration

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm