Yealink SIP-T48G Administrator's Manual page 451

LDAP (Lightweight Directory Access Protocol) is an application protocol for accessing
and maintaining information services for the distributed directory over an IP network. IP
phones can be configured to interface with a corporate directory server that supports
LDAP version 2 or 3. The following LDAP servers are supported:
Microsoft Active Directory

Sun ONE Directory Server

Open LDAP Directory Server

Microsoft Active Directory Application Mode (ADAM)

The biggest plus for LDAP is that users can access the central LDAP directory of the
corporation using IP phones. Therefore they do not have to maintain the directory locally.
Users can search and dial out from the LDAP directory, and save LDAP entries to the
local directory. LDAP entries displayed on the IP phone are read only, which cannot be
added, edited or deleted by users. When an LDAP server is properly configured, the IP
phone can look up entries from the LDAP server in a wide variety of ways. The LDAP
server indexes all the data in its entries, and "filters" can be used to select the desired
entry or group, and return the desired information.
Configurations on the IP phone limit the amount of the displayed entries when querying
from the LDAP server, and decide how attributes are displayed and sorted.
You can set a DSS key to be an LDAP key, and then press the LDAP key to enter the LDAP
search screen when the IP phone is idle.
Note
LDAP is not applicable to SIP-T19(P) E2 IP phones.
LDAP Attributes
The following table lists the most common attributes used to configure the LDAP lookup
on IP phones.
Abbreviation
gn
cn
sn
dn
dc
-
-
Name
givenName
commonName
surname
distinguishedName
dc
company
telephoneNumber
Configuring Advanced Features
Description
First name
LDAP attribute is made up from
given name joined to surname.
Last name or family name
Unique identifier for each entry
Domain component
Company or organization name
Office phone number
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