T-MOBILE, COMCAST UP ANTE AGAINST ROBOCALLS

Calls between T-Mobile users and Comcast’s Xfinity Voice home subscribers will now be “verified,” the latest move in the ongoing fight against robocalls. The two companies announced Wednesday that they have launched cross-network verification, allowing users to know that the calls they are receiving is from a person and not a spammer or robocaller. They use a handoff system recommended by the Federal Communications Commission where the caller’s network verifies that a legitimate call is being made with a “digital signature.” The recipient’s network then confirms the signature on its side.