Yealink SIP-T53W Administrator's Guide

Troubleshooting Methods
548
Network Reachability Detection Configuration
The following table lists the parameters you can use to configure network reachability detection.
Parameter
static.features.network_test.enable <y0000000000xx>.cfg
Description
It enables or disables the network reachability detection.
Permitted
Values
0-Disabled
1-Enabled, if the network is unreachable, "Network unreachable" is displayed on the
T42S/T42U/T41S phones, while a network unreachable icon is displayed in the status bar of other
phones.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
static.features.network_test.host <y0000000000xx>.cfg
Description
It configures the server address that the phone uses to detect the network reachability.
The server address can be the IP address or domain name. Multiple server addresses are separated
by semicolons.
Example:
static.features.network_test.host = 192.168.1.20;192.168.1.10
Note: It works only if "static.features.network_test.enable" is set to 1 (Enabled).
Permitted
Values
Blank-The phone does not detect network reachability.
String within 1024 characters
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
static.features.network_test.check_policy <y0000000000xx>.cfg
Description
It configures the policy when detecting the network reachability of multiple servers.
Note: It works only if "static.features.network_test.enable" is set to 1 (Enabled).
Permitted
Values
0-OR
1-AND
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
static.features.network_test.period <y0000000000xx>.cfg
Description
It specifies a period of time (in seconds) to detect the network status when the network is reachable.
Note: It works only if "static.features.network_test.enable" is set to 1 (Enabled).
Permitted
Values
Integer from 2 to 3600
Default
60
Supported
All phones except T48G, T46G, T42G, T41P and T29G

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm