Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
64
The default DSCP value for RTP packets is 46 (Expedited Forwarding).
Permitted
Values
Integer from 0 to 63
Default
46
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Advanced > QoS > Voice QoS (0~63)
Other Phones:
Network > Advanced > Voice QoS > Voice QoS (0~63)
Parameter
static.network.qos.signaltos
[1]
<y0000000000xx>.cfg
Description
It configures the DSCP (Differentiated Services Code Point) for SIP packets.
The default DSCP value for SIP packets is 26 (Assured Forwarding).
Permitted
Values
Integer from 0 to 63
Default
26
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Advanced > QoS > SIP QoS (0~63)
Other Phones:
Network > Advanced > Voice QoS > SIP QoS (0~63)
[1]
If you change this parameter, the phone will reboot to make the change take effect.
802.1x Authentication
Yealink phones support the following protocols for 802.1x authentication:
l EAP-MD5
l EAP-TLS (requires Device and CA certificates, requires no password)
l EAP-PEAP/MSCHAPv2 (requires CA certificates)
l EAP-TTLS/EAP-MSCHAPv2 (requires CA certificates)
l EAP-PEAP/GTC (requires CA certificates)
l EAP-TTLS/EAP-GTC (requires CA certificates)
l EAP-FAST (supports EAP In-Band provisioning, requires CA certificates if the provisioning method is Authentic-
ated Provisioning)
For more information on 802.1x authentication, refer to Yealink 802.1X Authentication.
Topic
802.1x Authentication Configuration
802.1x Authentication Configuration
The following table lists the parameters you can use to configure 802.1x authentication.
Parameter
static.network.802_1x.mode
[1]
<y0000000000xx>.cfg
Description
It configures the 802.1x authentication method.
Permitted
Values
0-EAP-None, no authentication
1-EAP-MD5

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