Proactive telephone number monitoring based on answer seizure ratio

A system for monitoring a plurality of phone numbers, the system comprising:

• a computing device including at least one processor and memory associated with the at least one processor;
• and
• a telephone network including a plurality of telephone numbers,
• wherein, for each phone number, the computing device is configured to:
• detect call activity involving the phone number during a detection period having a preselected duration;
• determine an answer seizure ratio (ASR) for the phone number during the detection period from the call activity;
• determine a difference between the ASR for the phone number during the detection period and an ASR for the phone number from at least one previous detection period;
• and
• determine that the difference satisfies at least one preselected criterion and instigate a procedure to investigate or repair the phone number when the difference satisfies the at least one preselected criterion.