Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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1-On, the phone performs auto provisioning at random between a starting time configured by the para-
meter "static.auto_provision.flexible.begin_time" and an ending time configured by the parameter "stat-
ic.auto_provision.flexible.end_time" on a random day within the period configured by the parameter
"static.auto_provision.flexible.interval".
Default
0
Web UI
Settings > Auto Provision > Flexible Auto Provision
Parameter
static.auto_provision.flexible.interval <y0000000000xx>.cfg
Description
It configures the interval (in days) for the phone to perform auto provisioning.
The auto provisioning occurs on a random day within this period based on the phone's MAC address.
The phone performs auto provisioning on a random day (for example, 18) based on the phone's MAC
address.
Note: It works only if “static.auto_provision.flexible.enable” is set to 1 (On).
Permitted
Values
Integer from 1 to 1000
Default
30
Web UI
Settings > Auto Provision > Flexible Interval Days
Parameter
static.auto_provision.flexible.begin_time <y0000000000xx>.cfg
Description
It configures the starting time of the day for the phone to perform auto provisioning at random.
Note: It works only if “static.auto_provision.flexible.enable” is set to 1 (On).
Permitted
Values
Time from 00:00 to 23:59
Default
02:00
Web UI
Settings > Auto Provision > Flexible Time
Parameter
static.auto_provision.flexible.end_time <y0000000000xx>.cfg
Description
It configures the ending time of the day for the phone to perform auto provisioning at random.
If it is left blank or set to a specific value equal to starting time configured by the parameter “stat-
ic.auto_provision.weekly.begin_time”, the phone performs auto provisioning at the starting time.
If it is set to a specific value greater than starting time configured by the parameter “static.auto_pro-
vision.weekly.begin_time”, the phone performs auto provisioning at random between the starting time
and ending time.
If it is set to a specific value less than starting time configured by the parameter “static.auto_pro-
vision.weekly.begin_time”, the phone performs auto provisioning at random between the starting time
on that day and ending time in the next day.
Note: It works only if “static.auto_provision.flexible.enable” is set to 1 (On).
Permitted
Values
Time from 00:00 to 23:59
Default
Blank
Web UI
Settings > Auto Provision > Flexible Time
Parameter
static.auto_provision.prompt.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to prompt you for the configuration update and the result (if any con-
figuration changes) during auto provisioning.

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