Yealink SIP-T53W Administrator's Guide

Account Settings
302
Values 1-Successive registration
Default
0
Parameter
account.X.fallback.timeout
[1]
<MAC>.cfg
Description
It configures the time interval (in seconds) for the phone to detect whether the working server is avail-
able by sending the registration request after the fallback server takes over call control.
Note: It is not applicable to outbound proxy servers.
Permitted
Values
Integer from 10 to 2147483647
Default
120
Parameter
account.X.outbound_proxy_fallback_interval
[1]
<MAC>.cfg
Description
It configures the time interval (in seconds) for the phone to detect whether the working outbound proxy
server is available by sending the registration request after the fallback server takes over call control.
Note: It is only applicable to outbound proxy servers.
Permitted
Values
Integer from 0 to 65535
Default
3600
Web UI
Account > Register > Proxy Fallback Interval
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Accounts > Account X > Proxy Fallback Interval
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings > Accounts > Proxy Fallback Interval
Parameter
account.X.redundancy_with_reg_fail.enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to send the request to the next server when failing to register an
account.
Note: It works only if “account.X.fallback.redundancy_type" is set to 1 (Successive registration).
Permitted
Values
0-Disabled. Only if the working server does not respond, will the IP phone send the request to the next
server.
1-Enabled
Default
0
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
Failover Server Redundancy Configuration
The following table lists the parameters you can use to configure failover server redundancy.
Parameter
account.X.sip_server.Y.register_on_enable
[1][2]
<MAC>.cfg
Description
It enables or disables the phone to send registration requests to the secondary server when encoun-
tering a failover.
Permitted
Values
0-Disabled, the phone will not attempt to register to the secondary server, since the phone assumes
that the primary and secondary servers share registration information. So the phone will directly send
the requests to the secondary server.
1-Enabled, the phone will register to the secondary server first, and then send the requests to it.

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