Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
499
Default
1
Web UI
Features > General Information > Reserve # in User Name
Busy Tone Delay
The busy tone is an audible signal to indicate that the call is released by the other party. You can define the amount
of time that the busy tone lasts.
Topic
Busy Tone Delay Configuration
Busy Tone Delay Configuration
The following table lists the parameter you can use to configure busy tone delay.
Parameter
features.busy_tone_delay <y0000000000xx>.cfg
Description
It configures the duration (in seconds) that the busy tone lasts when the call is released by the remote
party.
Permitted
Values
0-the phone will not play a busy tone.
3-3s, a busy tone lasts for 3 seconds on the phone.
5-5s, a busy tone lasts for 5 seconds on the phone
Default
0
Web UI
Features > General Information > Busy Tone Delay (Seconds)
CFG File Version Information
You can customize the version information for the CFG configuration file and then check the version information via
phone/web user interface. With this feature, you can easily know which version of the CFG configuration file the IP
phone is configured.
Topic
CFG File Version Information Configuration
CFG File Version Information Configuration
The following table lists the parameters you can use to configure CFG file version information.
Parameter
static.auto_provision.config_version.com <y0000000000xx>.cfg
Description
It configures the version information of the Common CFG configuration file.
After configuration, you can check the configuration file version information at the path: Menu > Status
> Phone > COM Version (phone user interface) or Status > Status > Version > COM Version (web
user interface).
Permitted
Values
String
Default
Blank
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Parameter
static.auto_provision.config_version.mac <y0000000000xx>.cfg
Description
It configures the version information of the MAC CFG configuration file.

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