The HiPath telephone systems from Unify (formerly Siemens Enterprise Communications) support a phone book on the phone via LDAP.
Setup
| Authentication | Optional | 
| Phone Number Formatting | Without formatting, internally abbreviated Note the location settings for the telephone equipment. | 
| End Device Support | HiPath 2000/3000/5000 | 
| LDAP Server IP Address | Specify the IP address of the MetaDirectory. | 
| LDAP Access Port Number | Specify the TCP port of the MetaDirectory. | 
| Base DN | Specify the LDAP node that you just configured (dc=hipath). | 
| Search query | displayName=$* | 
| Name result attribute | displayName | 
| Phone number result attribute | telephoneNumber | 
| Sorting the search result | active | 
| LDAP configuration code | This is the trunk code to be used for external calls. (Default is "0") | 
| LDAP phone number prefix | Leave this field empty. | 
Version 6