Cost control callback
<communications> A system where a computer automatically rejects incoming dial-up calls from certain telephone numbers and calls them back, with the result that the caller pays nothing for the connection.
This differs from security callback in that it applies to certain phone numbers instead of to certain user names.
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| COS COSE COSINE cosmic rays COSS | callback | Cost Driver Attribute Cost/Schedule Control System Criteria COTS Cougar cough and die |
