CLI (Caller Line Identification)Non-CLI (Non-Caller Line Identification)Secure Telephony Identity Revisited (STIR) Attestation levelsSignature-based Handling of Asserted information using toKENs (SHAKEN) To understand the need for implementing an identification verification technique in Internet protocol based network to network communication system, we need to evaluate the existing problem plaguing the VoIP setup that is unwanted robo calls … Continue reading CLI/NCLI, Robocalls and STIR/SHAKEN