Mobile phones fall silent with hybrid encrypted calling service

July 14, 2014 // By Jean-Pierre Joosting
Silent Circle has announced the expansion of Out-Circle Calling (OCC) encrypted hybrid calling that enables Silent Circle members to make and receive encrypted, private voice calls through the company’s Silent Phone service to non-Silent Circle subscribers in 79 total countries.

The launch of global Out-Circle Calling represents a major disruption to wireless carriers’ traditional mobile calling models, which impose steep roaming fees on consumer and business subscribers. In contrast, Out-Circle Calling gives Silent Phone users a high-fidelity VoIP option for calling standard mobile and public switched telephone network (PSTN) lines across the world while benefiting from the combined privacy, utility and value of having Silent Circle’s global encrypted mobile communications available anywhere they find cellular and Wi-Fi networks.

“With Out-Circle Calling, Silent Circle is directly challenging the legacy model of mobile carriers by offering an alternative to costly mobile roaming fees. This is an especially important issue for our enterprise and government customers around the world,” said Vic Hyder, Silent Circle’s Chief of Revenue. “International fees and roaming charges account for a significant portion of European and Latin American business overhead. Our encrypted international calling service completely eliminates roaming charges while protecting members’ privacy with the use of Silent Phone.”

Silent Circle is changing how the world communicates in the face of increasing criminal, state-sponsored, commercial, and internet-wide privacy threats impacting people around the world. Silent Circle members use Silent Phone to place high-quality, private voice and video calls on iOS and Android devices and use Out-Circle Calling to dial conventional phone numbers where communications are encrypted between the Silent Phone user’s device and Silent Circle’s private network. Silent Circle’s Silent Phone for Desktop offers additional, private videoconferencing features for users on Windows laptops and desktops. Silent Text allows members to exchange private mobile messages, including large attachments up to 100MB with a burn feature that securely auto-deletes sent messages and attachments at a predetermined time from both senders’ and receivers’ devices.

Silent Circle’s private communications apps are also available in Blackphone, the world’s first smartphone placing privacy and control directly in the hands of its users. Developed by SGP Technologies, a Swiss-based joint venture between Silent Circle and Spanish