as my experience in my projects,
in version 12.5 of UCCX, it's better to upgrade at least to SU2-ES04
because versions before what i said, has many bugs & issues..
if it's possible for you, upgrade & apply patches.. and check the issue again..
(Rate by "Helpful" or "Accept") (محمدرضا هادی_ایران) (Email: morez.hadi@gmail.com)