Can netbackup 7.5.0.7 client pbx port be changed?

Hello,

I recently installed netbackup 7.5.0.4 client on linux machine and thereafter upgraded it to 7.5.0.7 .
But the issue came that the Database listener was running on that port 1556 so pbx couldn't be started on it. Since the port is alreday occupied I cannot claim that port back for backup process pbx.
I need to know whether is it possible to change the pbx port for client?

Thanx in advance!

Regards,