Yealink SIP-T57W Administrator's Guide

Call Features
380
Default
1
Supported
Devices
All phones except CP920
Auto Answer
Yealink phones support answering a SIP call or an IP address call automatically. Auto answer is configurable on a
per-line basis, while IP address call is not.
By default, the phones will not automatically answer the incoming call during a call or while dialing even if the auto
answer is enabled; and the incoming call will not be automatically answered after you end the current call or cancel
the dialing. You can configure how the phone answers the call automatically.
Topic
Auto Answer Configuration
Auto Answer Configuration
The following table lists the parameters you can use to configure the auto answer.
Parameter
account.X.auto_answer
[1]
<MAC>.cfg
Description
It enables or disables auto answer a SIP call.
Note: The phone cannot automatically answer the incoming call during a call or while dialing even if
the auto answer is enabled.
Permitted
Values
0-Disabled
1-Enabled, the phone can automatically answer an incoming call.
Default
0
Web UI
Account > Basic > Auto Answer
Phone UI
Color Screen Phones:
Menu > Features > Auto Answer > Line X > Auto Answer
Black-and-white Screen Phones:
Menu > Features > Auto Answer > Status
Parameter
account.X.auto_answer_mute_enable
[1]
<MAC>.cfg
Description
It enables or disables the auto answer mute feature.
Note: It works only if the values of parameters “account.X.auto_answer” and “features.allow_mute”
are set to 1 (Enabled). The value configured by this parameter takes precedence over that configured
by the parameter “features.mute.autoanswer_mute.enable”.
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
Web UI
Account > Basic > Auto Answer Mute
Phone UI
Menu > Features > Auto Answer > Account 1 > Auto Answer (On) > Auto Answer Mute
Parameter
features.ip_call.auto_answer.enable <y0000000000xx>.cfg
Description
It enables or disables the auto answer feature for IP call.

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