SITR/SHAKEN implementation in effect today (June 30 2021)

[Sean Donelan <sean () donelan com>]

STIR/SHAKEN Broadly Implemented Starting Today
https://www.fcc.gov/document/stirshaken-broadly-implemented-starting-today

WASHINGTON, June 30, 2021—FCC Acting Chairwoman Jessica Rosenworcel today
announced that the largest voice service providers are now using 
STIR/SHAKEN caller ID authentication standards in their IP networks, in 
accordance with the deadline set by the FCC. This widespread 
implementation helps protect consumers against malicious spoofed 
robocalls and helps law enforcement track bad actors. The STIR/SHAKEN 
standards serve as a common digital language used by phone networks, 
allowing valid information to pass from provider to provider which, among 
other things, informs blocking tools of possible suspicious calls.