Yealink SIP-T57W Administrator's Guide

Directory
333
Default
1
Web UI
Directory > LDAP > LDAP Lookup for Callout
Parameter
ldap.ldap_sort <y0000000000xx>.cfg
Description
It enables or disables the phone to sort the search results in alphabetical order or numerical order.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Directory > LDAP > LDAP Sorting Results
Parameter
ldap.incoming_call_special_search.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to search the telephone numbers starting with ”+” symbol and “00”
from the LDAP server if the incoming phone number starts with”+” or “00”. When completing the LDAP
search, all the search results will be displayed on the phone screen.
Example:
If the phone receives an incoming call from the phone number 0044123456789, it will search
0044123456789 from the LDAP server first, if no result found, it will search +44123456789 from the
server again. The phone will display all the search results.
Note: It works only if “ldap.call_in_lookup” is set to 1 (Enabled). You may need to set “ldap.name_fil-
ter” to be (|(cn=%)(sn=%)(telephoneNumber=%)(mobile=%)) for searching the telephone numbers
starting with ”+” symbol.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
ldap.numb_display_mode <y0000000000xx>.cfg
Description
It configures the display mode of the attribute name for the LDAP contact number.
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
0-NumberN (N is an increasing number), for example Number1, Number2, Number3…
1-Attribute name pushed by the server
Default
0
Parameter
ldap.customize_label <y0000000000xx>.cfg
Description
It configures the display name of the LDAP phone book.
If it is left blank, LDAP is displayed.
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Directory > LDAP > LDAP Label
Parameter
ldap.extra_attr <y0000000000xx>.cfg
Description
It configures the extra attributes of each record to be returned by the LDAP server.
Multiple attributes are separated by spaces.
Example:

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