The Island's telecoms regulator says it's issuing new guidance to companies to stop fraudsters using fake phone numbers.
The Communications and Utilities Regulatory Authority has been investigating potential problems with Calling Line Identification - the number that appears on your phone when someone calls you.
It 's concerned conmen are using fake numbers which aren't made clear to consumers.
After holding a consultation, it says it'll put a new condition on licences for business from next year to make sure they're tackling the issue.
Northern bus services to be raised in Keys
Ben out of service for maintenance work this week
Richmond Hill closed again tonight for work
October warmer and sunnier than usual, says Met Office
MHK queries cost of Liverpool awards trip
DOI says it has 20 empty public sector homes
Marquee plan submitted by Milntown Estate
Fire crews called to free driver from crashed car