Secure Telephone Identity Revisited/ Signature-based Handling of Asserted Information Using Tokens (STIR/SHAKEN) is helping Canadians determine which calls can be trusted. STIR/SHAKEN aims at helping combat spoof calls by verifying the caller ID information for Internet Protocol-based voice calls.
Caller ID spoofing is frequently used in fraudulent and nuisance calls to mask the caller's real identity. STIR/SHAKEN will help tackle this problem and reduce the frequency and impacts of such calls.
There are certain restrictions to STIR/SHAKEN as not all calls will be verified due to an issue in device and network compatible requirements. These also include calls that are not entirely performed over an IP-voice network. People in contact with or trying to contact police servers or domestic abuse shelters who also use spoofing may face some issues.
According to Ian Scott, Chairperson and CEO of, Canadian Radio-television and Telecommunications Commission (CRTC), the new caller ID technology will help Canadians determine which calls are legitimate and which needs to be treated with caution. He also said that as providers upgrade their IP networks, STIR/SHAKEN will reduce spoofing.
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