Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Other Phones:
Network > Basic > IPv4 Config > Static IP Address > Default Gateway
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Default Gate-
way
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Default Gateway
Parameter
static.network.static_dns_enable
[1]
<y0000000000xx>.cfg
Description
It triggers the static DNS feature to on or off for the wired network.
Note: It works only if “static.network.internet_port.type” is set to 0 (DHCP).
Permitted
Values
0-Off, the phone will use the IPv4 DNS obtained from DHCP.
1-On, the phone will use manually configured static IPv4 DNS.
Default
0
Web UI
Network > Basic > IPv4 Config > Static DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Type(DHCP) > Static
DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
DHCP IPv4 Client > Static DNS
Parameter
static.network.primary_dns
[1]
<y0000000000xx>.cfg
Description
It configures the primary IPv4 DNS server for the wired network.
Note: It works only if “static.network.ip_address_mode” is set to 0 (IPv4) or 2 (IPv4 & IPv6). In the
DHCP environment, you need to make sure “static.network.static_dns_enable" is set to 1 (On).
Permitted
Values
IPv4 Address
Default
Blank
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Basic > IPv4 Config > Static DNS > Primary DNS
Other Phones:
Network > Basic > IPv4 Config > Static IP Address > Primary DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Pri.DNS
In the DHCP environment:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > DHCP > Static DNS
(Enabled) > Pri.DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Pri.DNS
In the DHCP environment:

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