The flowchart below summarizes the device's process for querying the AD and routing the
call based on the query results:
Figure 17-4: LDAP Query Flowchart
Note: If you are using the device's local LDAP cache, see 'Configuring the Device's
LDAP Cache' on page 186 for the LDAP query process.
17.1.3.2 Configuring AD-Based Routing Rules
The procedure below describes how to configure Tel-to-IP routing based on LDAP queries.
 To configure LDAP-based Tel-to-IP routing for Lync Server 2010:
1. Configure the LDAP server parameters, as described in 'Configuring the LDAP Server'
on page 185.
2. Configure the AD attribute names used in the LDAP query:
a. Open the Advanced Parameters page (Configuration tab > VoIP menu > SIP
Definitions submenu > Advanced Parameters).