AT & T and T-Mobile have begun deploying call authentication technology between the two networks. Soon, if a phone call is passed from one network to another using a compatible device, the recipient receives the message "Applicant Verification" and knows for sure that the call is not from a Robocall or spammer spammer. . AT & T also indicates that it tests by integrating the data used by this system into its Call Protect service, started to offer for free to its customers last month
Deployment is the last step in US mobile operators fight automated callsand comes after the chairman of the Federal Communications Commission, Ajit Pai, ordered them set up a system for authentication of calls by the end of 2019. Last month, the FCC criticized what it called the slow progress by carriers towards this goal after he voted to allow carriers block the default automated calls in June.
The T-Mobile and AT & T Call Authentication Partnership is based on the SHAKEN / STIR standard, which verifies the accuracy of the caller's identity. T-Mobile was first to implement the standard in January for calls made within its network and, in March, AT & T and Comcast announced their partnership for authenticate calls between their two networks. This was followed by a similar announcement from T-Mobile and Comcast in April. Sprint announced plans to test the technology on its network in the second half of this year.
The SHAKEN / STIR standard has its limits – namely that it can only say when a call is truly legitimate, instead of knowing when it is definitely spam – but as more and more devices and network providers will implement the standard, the ratio of authenticated / unauthenticated calls will increase. , increasing the likelihood that an unauthenticated call will be spam and can be safely ignored.