Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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ldap.extra_attr = title lang
This requires the "title" and “lang” extra attributes set for each contact record on the LDAP server.
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
Blank
Supported
Devices
T57W, T54W, T48U, T48S, T46U, T46S
Parameter
ldap.display_extra_attr <y0000000000xx>.cfg
Description
It configures the extra attributes list of each record to be displayed on the phone.
The attribute must start with a “%” symbol. Multiple attributes are separated by spaces.
Example:
ldap.display_extra_attr = %title %lang
The title and lang of the contact record are displayed on the phone screen.
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
Blank
Supported
Devices
T57W, T54W, T48U, T48S, T46U, T46S
Parameter
ldap.custom_extra_attr_name <y0000000000xx>.cfg
Description
It configures the custom attribute names of each record that are displayed on the phone.
The valid format is: <custom attribute name on the phone>%<attribute name on the server>. Multiple
attribute names are separated by spaces.
Example:
ldap.custom_extra_attr_name = Comment%title Language%lang
The phone screen displays "Comment: title of the contact record" and "Language: lang of the contact
record".
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
String
Default
Blank
Supported
Devices
T57W, T54W, T48U, T48S, T46U, T46S
Parameter
ldap.anonymous_bind_operation.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to use anonymous identity for accessing the LDAP directory.
Note: It works only if “ldap.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, if the authentication information is not configured on the phone, the phone can use the
empty one to log into the LDAP server. But if the server does not allow anonymity to log into, the
phone prompts users to enter the corresponding user name and password.

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