Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
ldap.ldap_sort
0 or 1
0
Description:
Enables or disables the IP phone to sort the search results in alphabetical order or
numerical order.
0-Disabled
1-Enabled
Web User Interface:
Directory->LDAP->LDAP Sorting Results
Phone User Interface:
None
ldap.incoming_call_special_search.enable
0 or 1
0
Description:
Enables or disables the IP 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, the all search results will be displayed on the LCD screen.
0-Disabled
1-Enabled
For example,
If the phone receives an incoming call from the phone number 0044123456789, it will
search 0044123456789 from the LDAP sever 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 the value of the parameter “ldap.call_in_lookup” is set to 1 (Enabled).
You may need to set the value of the parameter “ldap.name_filter” to be
(|(cn=%)(sn=%)(telephoneNumber=%)(mobile=%)) for searching the telephone numbers
starting with ”+” symbol.
Web User Interface:
None
Phone User Interface:
None
LDAP Key
For more information on how to configure the DSS Key, refer to Appendix D: Configuring DSS
Key on page 1014.
LDAP key can be configured only if the LDAP feature is enabled.

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm