Allowed Contacts on Time Restriction on mobile device doesn't work and cannot make those calls when outside time limit.

My children have an LG G2 phone.  I have time restrictions set up, but allow a list of contacts they can call when the phone is blocked.  During the time the apps are blocked, they are unable to make calls to those allowed contacts.  The "Phone" or "Contacts" apps are blocked.  I am not comfortable that they are not allowed to make any calls, but according to the house rules for time restriction, they should be able to call the 10 contacts that I allow.  How can this be fixed? 

I placed these contacts on the "allowed contact" list by pulling them from the device's contact list, which is one of the options for adding them through NF.  The contacts on their allowed list correspond with their device's contact list.