Silent Phone

Silent Phone

Secure team communications. Enterprise-ready. No new hardware needed.

End-to-end security

All encryption is done on your device. You hold the keys. No one can listen in. Not even us.

Message redaction

Burn timers automatically redact messages after a customizable time period.

Group messaging

Send messages, documents, photos, and voice memos to multiple people at once.

Security Words

Detect and prevent sophisticated attacks with our unique Security Words.

End-to-end encrypted voice, video, messaging, file transfer, and more

Your team’s discussions are your business only. Silent Phone lets your team communicate remotely with complete security while being easy to deploy and use.

End-to-end encrypted & authenticated

Silent Phone makes sure your conversations are 100% private and that you’re connected only to your intended party. All encryption is done on device. No one can listen in.

No new hardware

Make secure calls with your existing iOS and Android devices. There are no special headsets or SIM cards. You don’t need a single-purpose phone. With Silent Phone, no new hardware is required.


Silent Phone is easy to deploy and manage in an enterprise environment. It requires no end-user training. It supports SSO, SIEM systems, and can be deployed via MDM. You and your team will have a dedicated client liaison and direct access to our highly trained technical support staff.

Premium security

We protect brand name enterprises, international NGOs, government agencies, and firms in such industries as defense, energy, and law. With Silent Phone, you’re getting a premium product with top-notch security.

Unlimited user to user calling and messaging

Keep the conversation going from anywhere in the world. Silent Phone delivers unlimited worldwide calling and messaging between your users with no hidden or additional fees from us.

Data minimization

Stored data is a security risk. Many providers keep as much data as possible “just in case.” We keep as little data as possible. We don’t track IP addresses or keep logs of calls and messages between users.

Secure voice and video calling

Most good things in the world start with a private conversation. Silent Phone lets your team talk securely across oceans and time zones.

Worldwide coverage

We host a global network of servers to make sure that your calls connect wherever you are.

Security words

Silent Phone’s powerful Security Words let you verify your own security.

Conference manager

Handle multiple calls at once with ease. Silent Phone shows you all your calls in one place. Pull calls into a conference, or let the other members speak for a moment while you pull someone aside privately.

HD quality

Hear and be heard clearly with Silent Phone’s HD quality voice and video. Our technology ensures that privacy does not come at the cost of call quality.

Security Words

Silent Phone’s Security Words put you in control of your own security. This unique system forms a “last line of defense” to keep man-in-the-middle attackers out of your communications. It’s just one way that we go the extra mile to protect our customers. Here are the three steps to make your calls extra secure.


On a call, you’ll be prompted with two Security Words.


Both you and your partner should read both words to each other. Be sure that you both see the same words on the screen.


Tell Silent Phone that you have compared the words and that they match. Silent Phone will show that the call is “Green Secure” and will remember this for the next call. You only have to do this verification once per pair of devices.