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A "silent call" generally refers to a telephone call where the recipient answers the call, but there is no one on the other end to speak or respond. This can happen for several reasons, including: 1. **Telemarketing**: Automated dialers used by telemarketing firms might call multiple numbers simultaneously. If a recipient answers before an agent is available to take the call, the call might be silent.

Ancestors (6)

  1. Telemarketing
  2. Spamming
  3. History of computing
  4. History of mathematics
  5. Mathematics
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