How to search and display Grandstream UCM’s LDAP contact name on the phones


If you are using Grandstream UCM as LDAP Server, you may find that that the contact names are not showing on the phones when you dial out, or on the incoming calls. There are some settings not covered in the LDAP Config guide.

At the UCM

Go to UCM Web UI > System Setting > LDAP Server, each contact name is represented with the ‘CallerID Name’ attribute.

At the Phone

Navigate to the phone’s web interface > Phonebook > LDAP Phonebook, configure the following parameters:

LDAP Name Att

The LDAP contact name will be shown on phone during the inbound and outbound calls.