Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
506
The phone displays the keys with left-to-right order. For example, “favorite,uc_favorite,blf_list” means
the display order is Favorite keys > UC Favorite keys > BLF List keys.
If only one type is configured, the configured type will have the highest priority. For example, “blf_list”
means the IP phone preferentially display the BLF List keys, and remaining keys’ display order is: UC
Favorite keys > Favorite keys (the default order).
Note: If Auto Linekeys feature is enabled (features.auto_linekeys.enable = 1), the Line keys (the line
key type is configured as Line) will be shown first.
Permitted
Values
Blank (the display order: BLF List keys > UC Favorite keys > Favorite keys)
blf_list, uc_favorite, favorite or a combination of them
Default
Blank
Parameter
features.uc_dir.match_tail_number <y0000000000xx>.cfg
Description
It configures the minimum matched digits of the tail numbers of BroadCloud Buddy. When the entered
number matches the tail numbers of a buddy in the buddy directory, the phone will automatically dis-
play the matched results on the phone screen when placing a call.
If it is set to 0, the entered number must exactly match the number of BroadCloud Buddy.
If it is set to other values (for example, 4), the entered number less than 4 digits would not match with
the BroadCloud contact.
Example:
If there is a BroadCloud Buddy name “Sunmy” with the phone number “785656” and the parameter
“features.uc_dir.match_tail_number” is set to “4”, “5656”, “85656” or “785656” would match “Sunmy
(785656)”. “656”, “56” or “6” would not match “Sunmy (785656)”.
Permitted
Values
Integer greater than or equal to 0
Default
0
Supported
Devices
All color screen phones
Parameter
search_in_dialing.bw_uc_buddies.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to automatically search entries from the BroadSoft Buddies directory,
and display results on the pre-dialing/dialing screen.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All color screen phones
Parameter
search_in_dialing.bw_uc_buddies.priority <y0000000000xx>.cfg
Description
It configures the search priority of the BroadSoft Buddies directory.
Permitted
Values
Integer greater than or equal to 0
Default
6
Supported
Devices
All color screen phones
Parameter
directory_setting.bw_uc_buddies.enable <y0000000000xx>.cfg
Description
It enables or disables the users to access the BroadSoft Buddies directory by pressing the
Directory/Dir soft key.

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