Yealink SIP-T27G Administrator's Guide

Directory
329
Example:
ldap.name_filter = (|(cn=%)(sn=%))
When the cn or sn of the LDAP contact matches the entered name, the record will be displayed on the
phone screen.
ldap.name_filter = (&(cn=*)(sn=%))
When the cn of the LDAP contact is set and the sn of the LDAP contact matches the entered name,
the records will be displayed on the phone screen.
ldap.name_filter = (!(cn=%))
When the cn of the LDAP contact does not match the entered name, the records will be displayed on
the phone screen.
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Directory > LDAP > LDAP Name Filter
Parameter
ldap.number_filter <y0000000000xx>.cfg
Description
It configures the search criteria for LDAP contact numbers lookup.
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 phone 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 screen.
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Directory > LDAP > LDAP Number Filter
Parameter
ldap.tls_mode <y0000000000xx>.cfg
Description
It configures the connection mode between the LDAP server and the phone.
Permitted
Values
0-LDAP—The unencrypted connection between the LDAP server and the IP phone (port 389 is used
by default).
1-LDAP TLS Start—The TLS/SSL connection between the LDAP server and the IP phone (port 389 is
used by default).
2-LDAPs—The TLS/SSL connection between the LDAP server and the IP phone (port 636 is used by
default).
Default
0
Web UI
Directory > LDAP > LDAP TLS Mode
Parameter
ldap.host <y0000000000xx>.cfg

Yealink SIP-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm