Plain-language definition
The one-ring scam: a missed call that tempts you to call back a premium number.
Technical definition
Wangiri campaigns place near-zero-duration calls from rotating international numbers to many subscribers; callbacks terminate on revenue-share numbers. Detection clusters short calls and sequential dialing.
Why it matters
Wangiri causes direct subscriber losses and interconnect disputes.
Last reviewed 2026-09-12 by the Guardivia QoS Engineering Team. Product facts on this page describe current capabilities; items marked “where supported”, “optional”, “integration” or “consultancy” are confirmed per deployment.