The Polycom telephones in the SoundPoint and Media Phone series can access contacts through LDAP.
      The corresponding feature is called Corporate Directory Access. A license for the Polycom Productivity Suite will be need to use this feature.
    
Alternatively, you can use the phones to access the estos MetaDirectory via the Polycom XML Browser.
Setup
| Authentication | Optional | 
| Phone Number Formatting | Dialable Note the location settings for the telephone equipment. | 
| End Device Support | Generic Address Book | 
  <directory>
    <dirCorp dir.corp.address="ldap://metadirserver" dir.corp.port="712"
        dir.corp.transport="TCP" dir.corp.baseDN="dc=polycom" dir.corp.scope="sub" 
        dir.corp.filterPrefix="(objectclass=person)" dir.corp.user="anonymous@meta" 
        dir.corp.password="anonymous" dir.corp.pageSize="32" dir.corp.cacheSize="128" 
        dir.corp.leg.pageSize="8" dir.corp.leg.cacheSize="32" dir.corp.autoQuerySubmitTimeout="0" 
        dir.corp.viewPersistence="0" dir.corp.leg.viewPersistence="1">
    <attr1 dir.corp.attribute.1.name="sn" dir.corp.attribute.1.label="Last Name"
        dir.corp.attribute.1.type="last_name" dir.corp.attribute.1.filter="" 
        dir.corp.attribute.1.sticky="0" dir.corp.attribute.1.searchable="1" />
    <attr2 dir.corp.attribute.2.name="givenName" dir.corp.attribute.2.label="First Name"
        dir.corp.attribute.2.type="first_name" dir.corp.attribute.2.filter=""
        dir.corp.attribute.2.sticky="0" dir.corp.attribute.2.searchable="1" />
    <attr3 dir.corp.attribute.3.name="company" dir.corp.attribute.3.label="Company"
        dir.corp.attribute.3.type="other" dir.corp.attribute.3.filter=""
        dir.corp.attribute.3.sticky="0" dir.corp.attribute.3.searchable="1" />
    <attr4 dir.corp.attribute.4.name="telephoneNumber" dir.corp.attribute.4.label="Business"
        dir.corp.attribute.4.type="phone_number" dir.corp.attribute.4.filter=""
        dir.corp.attribute.4.sticky="0" />
    <attr5 dir.corp.attribute.5.name="otherTelephone" dir.corp.attribute.5.label="Business2"
        dir.corp.attribute.5.type="phone_number" dir.corp.attribute.5.filter=""
        dir.corp.attribute.5.sticky="0" />
    <attr6 dir.corp.attribute.6.name="homephone" dir.corp.attribute.6.label="Home"
        dir.corp.attribute.6.type="phone_number" dir.corp.attribute.6.filter=""
        dir.corp.attribute.6.sticky="0" />
    <attr7 dir.corp.attribute.7.name="mobile" dir.corp.attribute.7.label="Mobile"
        dir.corp.attribute.7.type="phone_number" dir.corp.attribute.7.filter=""
        dir.corp.attribute.7.sticky="0" />
    <backGroundSync dir.corp.backGroundSync="0" dir.corp.backGroundSync.period="86400" />
    <vlv dir.corp.vlv.allow="1" dir.corp.vlv.sortOrder="sn givenName" />
    </dirCorp>
  </directory>  
      Version 6