While AT&T and Comcast have been able to verify calls between their own customers, earlier this month, they successfully tested verifying calls between providers. Comcast and Sprint are to jointly tackle unsolicited robocalls by launching a program to authenticate and verify callers . They are to use the SHAKEN / STIR protocol , which gives phones a digital signature , and plan to launch a similar program later this year . The US Federal Communications Commission ( FCC ) has already requested 14 voice providers use the P / ID system and an act presented to the Senate in January , if given final approval , would give the FCC more powers to penalise robocalls .
Comcast and Sprint are to jointly tackle unsolicited robocalls by launching a program to authenticate and verify callers . They are to use the SHAKEN / STIR protocol , which gives phones a digital signature , and plan to launch a similar program later this year . The US Federal Communications Commission ( FCC ) has already requested 14 voice providers use the P / ID system and an act presented to the Senate in January , if given final approval , would give the FCC more powers to penalise robocalls .