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Encryption for Zoom Phone Follow

Overview

Zoom supports secure voice calls across all supported SIP devices, desktop, and mobile clients. Zoom Phone supports standards-based encryption using SIP over TLS 1.2 Advanced Encryption Standard (AES) 256-bit algorithm for calls and during phone provisioning sessions. In addition, call media is transported and protected by SRTP with AES-256 bit algorithm for Zoom desktop and mobile clients, and with AES-128 bit algorithm for devices.

This article covers:

Zoom Phone desktop client and mobile app

On versions 5.0.0 and higher, Zoom Phone supports SIP signaling between client and/to server over TLS1.2 with AES-256 bit encryption. Media call is transported and protected by SRTP with AES-256 encryption. 

Zoom Phone devices

Zoom Phone supports standards-based encryption using SIP over TLS 1.2 Advanced Encryption Standard (AES) 256-bit algorithm for calls and during phone provisioning sessions. In addition, call media is transported and protected by SRTP with AES-128 bit algorithm for devices. Learn more about certified devices.