Yealink SIP-T57W Administrator's Guide

Phone Provisioning
84
Note: It has a lower priority than the value defined by the parameter “static.auto_provision.attempt_
expired_time”.
Permitted
Values
Integer from 1 to 20
Default
10
Parameter
static.auto_provision.attempt_before_failed <y0000000000xx>.cfg
Description
It configures the maximum number of attempts to transfer a file before the transfer fails during auto pro-
visioning.
Permitted
Values
Integer from 1 to 10
Default
3
Parameter
static.auto_provision.retry_delay_after_file_transfer_failed <y0000000000xx>.cfg
Description
It configures the time (in seconds) to wait after a file transfer fails before retrying the transfer via auto
provisioning.
Permitted
Values
Integer from 0 to 300
Default
5
Parameter
static.auto_provision.reboot_force.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the phone to reboot after auto provisioning, even if there is no specific con-
figuration requiring a reboot.
Note: It works only for the current auto provisioning process. If you want the phone to reboot after
every auto provisioning process, the parameter must be always contained in the configuration file and
set to 1.
If the phone reboots repeatedly after it is set to 1, you can try to set “static.auto_provision.power_on" to
0 (Off).
Permitted
Values
0-Disabled
1-Enabled
Default
Blank
Parameter
features.action_uri_force_autop <y0000000000xx>.cfg
Description
It enables or disables the phone to end the call for triggering auto provisioning immediately when
receiving an HTTP or HTTPS GET request with the variable value set to AutoP during a call.
Note: It works only if “features.action_uri.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled, the phone triggers auto provisioning after the call.
1-Enabled
Default
0
Parameter
static.auto_provision.power_on <y0000000000xx>.cfg
Description
It triggers the power on feature to on or off.
Permitted
Values
0-Off
1-On, the phone performs auto provisioning when powered on.
Default
1
Web UI
Settings > Auto Provision > Power On

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