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Yealink SIP-T52S Administrator's Guide

Yealink SIP-T52S
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Configuring Advanced Features
595
Parameters
Permitted Values
Default
ldap.number_filter
String within 99
characters
Blank
Description:
Configures the search criteria for LDAP contact numbers look up.
The “*” symbol in the filter stands for any number. The “%” symbol in the filter stands for
the number entered by the user.
Example:
ldap.number_filter = (|(telephoneNumber=%)(mobile=%)(ipPhone=%))
When the number of the telephoneNumber, mobile or ipPhone of the contact record
matches the search criteria, the record will be displayed on the LCD screen.
ldap.number_filter = (&(telephoneNumber=*)(mobile=%))
When the telephoneNumber of the LDAP contact is set and the mobile of the LDAP contact
matches the entered number, the record will be displayed on the phone LCD screen.
Web User Interface:
Directory->LDAP->LDAP Number Filter
Phone User Interface:
None
ldap.tls_mode
0, 1 or 2
0
Description:
Configures the connection mode between the LDAP server and the IP phone.
0-LDAPUnencrypted connection between LDAP server and the IP phone (port 389 is used
by default).
1-LDAP TLS StartTLS/SSL connection between LDAP server and the IP phone (port 389 is
used by default).
2-LDAPsTLS/SSL connection between LDAP server and the IP phone (port 636 is used by
default).
Web User Interface:
Directory->LDAP->LDAP TLS Mode
Phone User Interface:
None
ldap.host
IP address or
domain name
Blank

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Yealink SIP-T52S Specifications

General IconGeneral
Touchscreen-
Display diagonal2.8 \
Backlight displayYes
Display resolution320 x 240 pixels
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
Bluetooth version2.1+EDR
Security algorithms802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface typeGigabit Ethernet
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Voice codecsG.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume controlDigital
Operating temperature (T-T)-10 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Front cameraNo
Operating system installedLinux
Weight and Dimensions IconWeight and Dimensions
Depth212 mm
Width211.6 mm
Height166.8 mm

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