Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
403
(Enabled).
Permitted
Values
Integer greater than or equal to 0
Default
6
Parameter
forward.no_answer.on_code <y0000000000xx>.cfg
Description
It configures the no answer forward on code to activate the server-side no answer forward feature.
The phone will send the no answer forward on code and the pre-configured destination number (con-
figured by the parameter “forward.no_answer.target”) to the server when you activate the no answer
forward feature on a phone basis.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled) and “features.fwd_mode” is set to 0
(Phone) (except T19(P) E2/CP920 phones).
Permitted
Values
String within 32 characters
Default
Blank
Web UI
Features > Forward&DND > Forward > No Answer Forward > On Code
Phone UI
Menu > Features > Call Forward > No Answer Forward > On Code
Parameter
forward.no_answer.off_code <y0000000000xx>.cfg
Description
It configures the no answer forward off code to deactivate the server-side no answer forward feature.
The phone will send the no answer forward off code to the server when you deactivate the no answer
forward feature on a phone basis.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled) and “features.fwd_mode” is set to 0
(Phone) (except T19(P) E2/CP920 phones).
Permitted
Values
String within 32 characters
Default
Blank
Web UI
Features > Forward&DND > Forward > No Answer Forward > Off Code
Phone UI
Menu > Features > Call Forward > No Answer Forward > Off Code
Call Forward in Custom Mode Configuration
The following table lists the parameters you can use to configure call forward in custom mode.
Parameter
account.X.always_fwd.enable
[1]
<MAC>.cfg
Description
It triggers always forward feature to on or off.
Note: It works only if “features.fwd.allow” is set to 1 (Enabled) and “features.fwd_mode” is set to 1
(Custom).
Permitted
Values
0-Off
1-On, incoming calls to the account X are forwarded to the destination number (configured by the para-
meter “account.X.always_fwd.target”) immediately.
Default
0
Supported
Devices
All phones except T19(P) E2 and 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