<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.
Last updated: 2003-07-13
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Nearby terms: COSINE « cosmic rays « COSS « cost control callback » Cost Driver Attribute » Cost/Schedule Control System Criteria » COTS