Overview
- Automated dialers log user behavior, and instantly rejecting a call can confirm a live number and raise its priority in dynamic databases that may be shared or resold.
- Authorities warn that answering and staying silent can trigger smart robocalls that transfer to operators or capture voice snippets for fraud.
- Recommended steps include sending unknown calls to voicemail, enabling OS or carrier spam filters, reporting suspicious numbers, and enrolling in opt‑out registries such as Profeco’s REPEP.
- Telecom operators block frequently reported numbers and verify call origin, but regulators say user choices remain crucial to reducing spam and fraud risks.
- Some specialists suggest briefly saying you are not interested to register an explicit refusal, though agencies generally advise avoiding any interaction.