Yealink SIP-T53W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
218
Time Zone Time Zone Name Time Zone Time Zone Name
+1 Czech Republic(Prague) +12 Fiji Islands
+1 Denmark(Kopenhagen) +12 Russia(Kamchatka Time)
+1 France(Paris) +12 Anadyr
+1 Germany(Berlin) +12 Petropavlovsk-Kamchatsky (RTZ 11)
+1 Hungary(Budapest) +12 Marshall Islands
+1 Italy(Rome) +12:45 New Zealand(Chatham Islands)
+1 Switzerland(Bern) +13 Nuku'alofa
+1 Sweden(Stockholm) +13 Tonga(Nukualofa)
+1 Luxembourg(Luxembourg) +13 Samoa
+1 Macedonia(Skopje) +13:30 Chatham Islands
+1 Netherlands(Amsterdam) +14 Kiribati
+1 Namibia(Windhoek)
NTP Settings
You can set an NTP time server for the desired area as required. The NTP time server address can be offered by
the DHCP server or configured manually.
Topic
NTP Configuration
NTP Configuration
The following table lists the parameters you can use to configure the NTP.
Parameter
local_time.manual_ntp_srv_prior <y0000000000xx>.cfg
Description
It configures the priority for the phone to use the NTP server address offered by the DHCP server.
Permitted
Values
0- High (use the NTP server address offered by the DHCP server preferentially)
1- Low (use the NTP server address configured manually preferentially)
Default
Value
0
Web UI
Settings > Time&Date > NTP by DHCP Priority
Parameter
local_time.dhcp_time <y0000000000xx>.cfg
Description
It enables or disables the phone to update time with the offset time offered by the DHCP server.
Note: It is only available to offset from Greenwich Mean Time GMT 0.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Time&Date > DHCP Time
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > DHCP Time

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