![AT&T and Comcast say they've hit new milestone in fight against robocalls [telecom]](https://forums.cabling-design.com/media/27551/conversions/6035234f7a9159.14414054-medium.jpg)
The companies say their upcoming authentication system is the industry's first to verify calls between separate providers.
BY Marrian Zhou
One way wireless carriers are working to stop the flood of unwanted robocalls is through authentication systems that verify caller IDs. One drawback so far has been that these systems work only on calls to and from the same provider.
On Wednesday, AT&T and Comcast said they'll offer call authentication between networks later this year. Customers will be able to see verified calls from all participating carrier providers.
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