Silent Phone

Spec sheet

Product

Silent Phone provides end-to-end encrypted voice and video calls, messaging, and file transfers for teams.Read 9 Oct 2026 · silentcircle.com

Audience

Silent Circle describes the product for enterprises, NGOs, government agencies, and organizations in fields including defense, energy, and law.Read 9 Oct 2026 · silentcircle.com

Platforms

Silent Circle provides Silent Phone for iOS and Android devices.Read 9 Oct 2026 · silentcircle.com

Integrations

Silent Phone supports SSO through OpenID Connect and Active Directory Federation Services, SIEM systems, and deployment via MDM.Read 9 Oct 2026 · silentcircle.com

Security

The product uses ZRTP, keeps private keys on the device, and includes Security Words to help users detect man-in-the-middle attacks.Read 9 Oct 2026 · silentcircle.com

Support

The maker says customers receive a dedicated client liaison and direct access to technical support staff.Read 9 Oct 2026 · silentcircle.com

Headquarters

Geneva, SwitzerlandRead 28 Sep 2026 · silentcircle.com

Founded

2011Read 28 Sep 2026 · silentcircle.com

Calling

The product supports unlimited worldwide calls and messages between users.Read 9 Oct 2026 · silentcircle.com

Conferencing

Silent Phone supports conference calls and says conference audio is mixed on the device.Read 9 Oct 2026 · silentcircle.com

Data minimization

Silent Circle says it does not track IP addresses or keep logs of calls and messages between users.Read 9 Oct 2026 · silentcircle.com

Management

Silent Manager provides web-based management of users, groups, plans, and devices, including remote wipe and zero-touch deployment.Read 9 Oct 2026 · silentcircle.com

Messaging

Users can send messages, voice memos, documents, videos, images, and other files, with burn timers from one minute to 90 days.Read 9 Oct 2026 · silentcircle.com

Plans and prices

Every Silent Phone plan and price →

Where Specifiction places it

• Encrypted Messaging Apps#38 of 436.9
• Secure Team Chat Software#28 of 306.9