Any Canadian Carrier, with a current year DCS and direct access to Canadian Telephone Numbers can participate in the call authentication scheme. For more information, please contact us.
Am I eligible to join the CST-GA?
Please complete the form below to find out if you are eligible to become a member of the CST-GA. Required*
If you have a question or would like to learn more information about the CST-GA , please do not hesitate to reach out.