I can confirm that it is working

During installation of dialer one problem occur. Conference numbers are doubled (2 x 8600001, 2 x 8600002, etc.) on each dialer server. Is it secure to delete one of the doubled number?
Also Conf File Secret in Admin/Servers has changed to "test" on all dialer servers. Can I change this to more secure password? Do i have to set the same password somewhere in conf files?
And the last question: on Vicibox 4.0.3 Balance Dialing in Admin/Servers was set to Yes. Now when i have installed dialers to Vicibix 5.0.3 it is set to No. Should I have to change this to Yes? What are the benefits?