Ldap Plugin Authentication - using ldaps / ssl

Hello together,

i installed actual osticket version 1.9.14 with the ldap plugin.
I was wondering why it was not working via ldaps connection to our
active directory server, where we are using ldaps common port 636.
After trying a few settings i found out that the osticket ldap plugin is only supporting start TLS connections,
that uses port 389 and which is less secure then the commong ldaps / ssl on port 636.

Maybe there is another solution or a tool to use ldaps / ssl on port 636 or any idea?

In our old osticket version 1.7.1.4 installation we used a mod (ldap_mod_V16)
that was working great and able to use ldaps / ssl.
http://www.osticket.com/forum/discussion/9246/mod-ldap-authentication

Thanks for all replys!