Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
295
Description
It enables or disables the phone to send requests to the outbound proxy server.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Account > Register > Enable Outbound Proxy Server
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Accounts > Outbound Status
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Accounts > Outbound Status
Parameter
account.X.outbound_proxy.Y.address
[1][2]
<MAC>.cfg
Description
It configures the IP address or domain name of the outbound proxy server.
Note: It works only if “account.X.outbound_proxy_enable” is set to 1 (Enabled). To use an outbound
proxy server address, “account.X.sip_server.Y.outbound_proxy_enable” should be set to 1 (Enabled).
Permitted
Values
String within 256 characters
Default
Blank
Web UI
Account > Register > Outbound Proxy Server Y
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Accounts > Account X > Outbound ProxyY
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Accounts > Outbound ProxyY
Parameter
account.X.outbound_proxy.Y.port
[1][2]
<MAC>.cfg
Description
It configures the port of the outbound proxy server.
Note: It works only if “account.X.outbound_proxy_enable” is set to 1 (Enabled).
Permitted
Values
Integer from 0 to 65535
Default
5060
Web UI
Account > Register > Outbound Proxy Server Y > Port
Parameter
account.X.reg_fail_retry_interval
[1]
<MAC>.cfg
Description
It configures the re-registration period (in seconds) after the account registration fails.
Note: It works only if "account.X.reg_failed_retry_min_time" and "account.X.reg_failed_retry_max_
time" are set to 0.
Permitted
Values
Integer from 0 to 1800
Default
30
Web UI
Account > Advanced > SIP Registration Retry Timer (0~1800s)
Parameter
account.X.reg_failed_retry_min_time
[1]
<MAC>.cfg
Description
It configures the base time to wait (in seconds) for the phone to retry to re-register after the account
registration fails.

Yealink SIP-T57W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Ethernet LAN	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Security algorithms	AES, HTTPS, MD5, SRTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, 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	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Volume control	Buttons
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	7 \
Display resolution	800 x 480 pixels
Front camera	No
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC

Weight and Dimensions

Depth	220 mm
Width	259.4 mm
Height	211 mm