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Zoom Phone calls do go through the Zoom cloud, but are encrypted with Advanced Encryption Standard (AES256). Both the call meta-data used to establish a call and the actual voice content are encrypted and cannot be intercepted and heard. On-campus calls are fully encrypted end to end. Off-campus calls are encrypted from your Zoom app or physical phone to Zoom, but may not be completely encrypted from Zoom to the off-campus caller depending on their carrier and their local telephone system. This is no different than with our calls using the current Cisco system as many telephone companies still use analog technology, at least in part, which is not encrypted. Calls are not stored at Zoom although voicemail, recordings, and transcriptions are encrypted and stored at Zoom until deleted by the user. Zoom supports WSU’s compliance with the Family Educational Rights and Privacy Act (FERPA) and the Health Insurance Portability and Accountability Act (HIPAA) as well.
For more details on how Zoom handles data, including Zoom Phone data, refer to Zoom - How is User Data Handled?
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