Telephone companies keep a record of the number, the time and duration of the call, and sometimes the caller's number.

Name: Telephone companies keep a record of the number, the time and duration of the call, and sometimes the caller's number.
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Question

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Telephone companies track and record details of calls made through their networks, including the number dialed, the time and duration of the call, and the caller's number for billing and operational purposes.

Telephone Companies Keep a Record of the Number, the Time