Zoom has announced end-to-end encryption on its cloud phone service. Zoom has tried to increase privacy and security services by bringing end-to-end encryption to other services as well.
In order to have end-to-end encryption from both sides, the security code has to be shared with each other. To operate this feature, the autonomous call recording has to be turned off.
For meetings, Zoom has given end-to-end encryption feature in October 2020. Now this feature is available for other services as well.