 PLANO, Texas, June 8, 2021 PRNewswire -- Ribbon Communications Inc. Nasdaq: RBBN, a global provider of real time communications software and IP Optical networking solutions to service providers, enterprises, and critical infrastructure sectors, today announced that Intrado , a global leader in technology-enabled services, has chosen Ribbon Call TrustTM for STIRSHAKEN compliance. Ribbon Call Trust is a comprehensive solution designed to validate a callers identity, intent, and reputation to mitigate fraud, nuisance and robocalls. 