You can find settings by navigating to System >> Settings.
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The Dialing Number Threshold would not let you call a number twice between a specific amount of seconds, so the amount of seconds in this section stand for the time limit between the calls for a specific number
Engine
If you are experiencing problem with the feeding page but everything else works fine, this probably mean the engine has failed. To solve this, you need to click on Restart Engine
This should only be use when you are experiencing problems or slowness with the feeding page (loading a lead, dispositioning a lead or direct viewing a lead).
Restarting the engine makes sure that the feeding page work properly again, it also interrupts all leads being viewed, and they become undispositionable. Therefor, after an engine restart all users must refresh the feeding page
