Yealink SIP-T57W Administrator's Guide

Call Features
382
Ring1.wav, Ring2.wav, Ring3.wav, Ring4.wav, Ring5.wav, Ring6.wav, Ring7.wav, Ring8.wav,
Silent.wav, Splash.wav or custom ring tone name (for example, Customring.wav)
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
features.custom_auto_answer_tone.enable <y0000000000xx>.cfg
Description
It configures the type of auto answer tone.
Note: It works only if “features.auto_answer_tone.enable” is set to 1 (Enabled).
Permitted
Values
0-One beep
1-Double beep
Default
1
Parameter
features.mute.autoanswer_mute.enable <y0000000000xx>.cfg
Description
It enables or disables the auto answer mute feature.
Note: It works only if “account.X.auto_answer” and “features.allow_mute” are set to 1 (Enabled). It is
not available to the intercom call.
Permitted
Values
0-Disabled
1-Enabled, the phone will mute the microphone when an incoming call is automatically answered,
and then the other party cannot hear you.
Default
0
Parameter
pstn.account.X.auto_answer
[2]
<MAC>.cfg
Description
It enables or disables the auto answer feature for PSTN account X.
Note: The IP phone cannot automatically answer the incoming call during a call even if the auto
answer is enabled.
Permitted
Values
0-Disabled
1-Enabled, the phone can automatically answer an incoming call.
Default
0
Supported
Devices
CP920
Web UI
Account > Basic > Auto Answer
Phone UI
Menu > Features > Auto Answer > Status
Parameter
pstn.account.X.auto_answer_mute_enable
[2]
<MAC>.cfg
Description
It enables or disables the auto answer mute feature for PSTN account X.
Note: It works only if the values of parameters “pstn.account.X.auto_answer” and “features.allow_
mute” are set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, the phone will mute the microphone when an incoming call is automatically answered,
and then the other party cannot hear you.
Default
0
Supported
Devices
CP920

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