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Blog2025-10-05

Spam Calls: Patterns to Block (and What to Let Through)

A practical list of spam patterns and how to avoid blocking real customers by accident.

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What to block

Common patterns:

  • repeated calls with no speech
  • known spam prefixes
  • “press 1 to…” prompts
  • callers who refuse to provide any detail

What to be careful with

Some real customers:

  • have bad reception
  • are non-native speakers
  • are in a hurry

Use a soft approach: ask one question first, then decide.