Bittium Secure Call™ - Quantum-Safe, End-to-End Encrypted Communication
Protect Your Organization’s Most Critical Conversations
Multi-platform Bittium Secure Call empowers your teams with confidential voice, video, messaging, and file sharing, all protected by quantum-safe, end‑to‑end encryption.
Built for government agencies, defense forces, law enforcement, and critical infrastructure organizations, Secure Call delivers uncompromising protection for environments with the highest information security requirements. It operates reliably in both commercial and fully private networks without dependency on public internet or cloud services.
Your organization stays in complete control: deploy it in your own infrastructure, manage it independently, and keep your communication chain fully protected.
Available for iOS, Android™, and Microsoft Windows, Secure Call integrates seamlessly across all devices, ensuring your people can communicate securely wherever they work. Secure Call is trusted, European, and in your control.
Quantum-Safe, End-to-End Security
For iOS, Android, Windows
For Commercial and Private Networks
No Dependency on Public Internet or Cloud
Now Available for iOS
Security You Can Trust, With the Features You Need
Rich Feature Set
- Voice, video, and conference calls
- One-to-one & group chat with attachments
- Disappearing messages, message acknowledgements & classification
- Group for announcements, restricted group visibility & timed group deletion
- Centralized contact directory – registration with email or phone number
Secure Communication on Desktop
- Available as a standalone Windows client
- Can be linked to an existing iOS or Android client
- Perfect for Tactical Operations Center or Control Room use cases
- Screen sharing
- Presence status to indicate contact availability
- Traffic light indication for messages (sent/received/read)
- Supports printing conversations for archiving
European Solution Completely In Your Control
Benefits
Centralized Contact Directory
- The app can use an online, centralized contact directory managed by Bittium Secure Call and the user organization
- For security, the contact directory visibility can be centrally managed
Privacy Protection
- Hosted by user organization, no data leakage to 3rd parties
- No collection or retention of sensitive metadata
- Screen capture prevention
Stand-Alone Hosting
- Secure Call can be installed in customer premises
- Perfect communication solution for private networks
Multi-Platform Interoperability
- Android, iOS, and Windows users united in the same secure communication platform
- Integrates with Bittium SafeMove EMM or 3rd party enterprise EMM for device and application management
- Quantum-safe Bittium SafeMove Mobile VPN for dual encryption
Scalable Server Infrastructure
- Fulfills uses case where different units/organizations must have own servers but users must be able to call between units/organizations
- High availability
Governmental Grade Security
- Achieve with the combination of hardware-based security Bittium Tough Mobile smartphones
Additional Info
Materials
Bittium Secure Call™ datasheet (pdf)
Bittium Tough Mobile™ 2 C datasheet (pdf)
FAQ
Question:
Do you support other than Windows on the desktop/laptop?
Answer:
Currently only Windows is supported.
Question:
Can I switch an ongoing call from a device to another (linked) device?
Answer:
Switching an ongoing call from a device to another is not supported because of the end-to-end encryption.
Question:
Can I edit a message that I sent?
Answer:
You cannot edit a message you have sent, but you are able to withdraw a message for a short while after sending.
Question:
Do you support sending and receiving SMS/MMS with Bittium Secure Call application?
Answer:
No, we want to keep it clear for the user that all communication in Bittium Secure Call is end-to-end encrypted.
Question:
Are you planning for security approvals for Bittium Secure Call?
Answer:
These are considered based on customer needs. We currently have security approvals for Bittium Tough Mobile 2 and Bittium Secure Suite/SafeMove and those provide a secure operational environment for Bittium Secure Call and other applications.
Question:
Can I use Bittium Secure Call with other than Bittium products?
Answer:
Yes, Secure Call works also on other Android devices, and with iOS and Windows clients. You can complement the application with Bittium Tough Mobile smartphone for security built from the ground up.
Android is a trademark of Google LLC. Microsoft and Windows are trademarks of the Microsoft group of companies. iOS is a trademark of iOS is a trademark or a registered trademark of Cisco in the U.S. and other countries.