Grandstream GXP2160 with LDAP

Has anybody on here have successfully got LDAP phonebook to work on the Grandstream phones.

Grandstream Supprt says “So as it stands right now our phones don’t support Windows AD.”

What are you serious?
How can you not support AD?

I have seen users that have got the GXP2100 to work with LDAP but there config does not work when i tried it.