What security precautions do you implement to ensure privacy with calls and texts?

In this article:

We take a number of precautions to ensure the security of your data. For example, accounts are password protected and email notifications for SMS and voicemail notifications are subject to TLS encryption.

Our voice and SMS services are secure within our network, however, as soon as we deliver those calls or messages to the PSTN (Plain Standard Telephone Network) there is no end-to-end encryption for those messages.