Openfire and Jitsi can't add other user

Hello everyone,

I testing Jitsi as alternative to skype in my company. I use Opfenfire as server. The login and authification via ldap works fine.

When I try to add a colleague in my contact list, he or she gets no request. There is no problem when I try another account via jabber.de or jit.si only when I using my Jabber account on the openfire server does not work. The port for jabber 5222 is open.

Best regards,

ChrisAndPatte