Secure Communications

Enterprise-grade encrypted voice calling, messaging, and file sharing built for enterprises, government agencies, and organisations that demand absolute privacy. End-to-end encryption with zero-knowledge architecture ensures that nobody - not even Minutes Network - can access your communications.

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AES-256
Encryption
Zero
Knowledge
GDPR
Compliant
E2E
Encrypted
Overview

Communications That Cannot Be Intercepted

In an era of increasing surveillance and data breaches, secure communications are not optional - they are essential. Minutes Network's Secure Communications platform provides end-to-end encrypted voice, messaging, and file sharing that meets the strictest security requirements of government, military, healthcare, legal, and financial organisations.

Secure

End-to-End Encryption

Every call, message, and file is encrypted on the sender's device and only decrypted on the recipient's device. Our zero-knowledge architecture means that even our own servers never have access to your plaintext communications.

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Zero-Knowledge Architecture

Encryption keys are generated and stored exclusively on user devices. Minutes Network servers handle only encrypted data - our zero-knowledge architecture means we do not have access to your plaintext communications.

Security

Enterprise-Grade Security

Built on AES-256 encryption with the Signal Protocol for key exchange. The same encryption standards used by military and intelligence agencies worldwide, independently audited and verified by third-party security researchers.

Identity Verification

Cryptographic identity verification ensures you are always communicating with the intended recipient. Out-of-band verification, QR code scanning, and certificate pinning prevent man-in-the-middle attacks.

Audit Logging

Comprehensive audit logs track access events, authentication attempts, and administrative actions without exposing message content. Meet regulatory requirements for accountability while maintaining absolute privacy.

Multi-Factor Authentication

Mandatory MFA with support for hardware tokens (YubiKey, FIDO2), biometric authentication, TOTP codes, and SMS verification. Configurable authentication policies per organisation with enforced complexity requirements.

Secure Voice

Encrypted Voice Calling with Crystal Clarity

Our secure voice platform delivers HD-quality encrypted calls over any network. Whether you are on WiFi, 4G, or 5G, calls are protected with end-to-end encryption from the moment you dial until the call ends. Secure conference calling supports up to 50 participants with the same encryption guarantees.

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End-to-end encrypted 1:1 and group calls (up to 50 participants)
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HD voice with OPUS codec at 48kHz sampling rate
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SRTP/DTLS encryption for media streams
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PSTN breakout with secure SIP trunking (TLS + SRTP)
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Secure voicemail with encrypted storage and notifications
Secure Messaging

Encrypted Messaging with Self-Destruct

Send messages, images, videos, and documents with full end-to-end encryption. Self-destructing messages automatically delete from both sender and recipient devices after a configurable time period. Perfect for sensitive discussions that should leave no digital footprint.

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Signal Protocol encryption for all messages
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Self-destructing messages (1 minute to 30 days)
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Encrypted group chats with up to 500 members
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Secure file sharing up to 100MB per file (encrypted at rest)
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Screenshot prevention and forwarding restrictions
Encryption Standards

Built on Proven Cryptographic Protocols

We do not invent our own cryptography. Our platform is built on industry-standard, peer-reviewed, and independently audited encryption protocols trusted by security researchers worldwide.

AES-256 Encryption

All data at rest is encrypted with AES-256, the Advanced Encryption Standard approved by the U.S. National Security Agency for TOP SECRET classified information. With 2^256 possible keys, brute-force attacks are computationally infeasible - it would take longer than the age of the universe to crack a single key.

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Signal Protocol

Key exchange and session management use the Signal Protocol, the gold standard for secure messaging. Double Ratchet Algorithm provides forward and future secrecy - compromising one session key cannot expose other messages.

Interconnect

TLS 1.3 & SRTP

All signalling uses TLS 1.3 with certificate pinning to prevent interception. Voice media is protected with SRTP using DTLS key exchange, securing both the control plane and media plane independently.

Tools

VPN Integration

For maximum security, our platform integrates with enterprise VPN solutions including WireGuard, IPsec, and OpenVPN. Route all communications through your corporate VPN for an additional layer of network-level encryption and access control.

// Encryption Stack Summary
{
  "data_at_rest": "AES-256-GCM",
  "key_exchange": "X25519 (Curve25519 ECDH)",
  "session_protocol": "Signal Double Ratchet",
  "message_authentication": "HMAC-SHA256",
  "voice_media": "SRTP with AES-128-CM",
  "signalling": "TLS 1.3 with certificate pinning",
  "key_derivation": "HKDF-SHA256",
  "identity_keys": "Ed25519 signing keys",
  "forward_secrecy": true,
  "zero_knowledge": true,
  "independently_audited": true
}
Compliance

Meeting the World's Strictest Regulatory Requirements

Our secure communications platform is designed from the ground up to meet compliance requirements across healthcare, finance, government, and legal industries.

GDPR Compliant

Full compliance with the EU General Data Protection Regulation. Our platform enforces data minimisation, purpose limitation, and privacy-by-design principles, with end-to-end encryption, granular access controls, comprehensive audit logging, and Data Processing Agreement (DPA) availability.

Enterprise-Grade Encryption

All communications are secured with TLS 1.3 for signalling and SRTP for media streams, ensuring enterprise-grade protection across every channel. Regular penetration testing and adherence to industry security best practices ensure continuous protection against evolving threats.

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SOC 2 Aligned

Regular third-party audits validate our security controls, availability, processing integrity, confidentiality, and privacy practices. Our practices are aligned with SOC 2 principles, demonstrating our ongoing commitment to operational security excellence.

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Aligned with ISO 27001

Our Information Security Management System is aligned with ISO 27001 standards. This covers our security policies, risk management processes, and continuous improvement programme for information security.

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Regular Security Audits

Independent third-party penetration testing and security assessments are conducted regularly. Findings are remediated promptly, and audit reports are available to enterprise customers under NDA.

Data Protection Standards

Our encryption and access control measures are designed to meet the requirements of organisations handling sensitive financial and healthcare communications, with comprehensive audit logging and data residency controls.

Deployment Options

Deploy Your Way: Cloud, On-Premise, or Hybrid

Choose the deployment model that best fits your security requirements, IT infrastructure, and regulatory obligations.

Cloud

Cloud Hosted

Deploy on Minutes Network's secure cloud infrastructure with data centres in the US, EU, UK, and Asia-Pacific. Fully managed with automatic updates, 99.99% uptime SLA, and geographic data residency options. Ideal for most organisations seeking fast deployment and minimal operational overhead.

Office

On-Premise

Deploy the complete secure communications stack within your own data centre or private cloud. Full control over infrastructure, data, and encryption keys. Ideal for government agencies, military organisations, and enterprises with strict data sovereignty requirements. Includes on-site installation support.

Interconnect

Hybrid

Combine cloud and on-premise components to create a tailored deployment. Keep sensitive encryption key management on-premise while leveraging cloud infrastructure for media relay and availability. Perfect for organisations transitioning to cloud while maintaining security controls.

Secure SIP Trunking

Enterprise-Grade Secure SIP

Connect your existing PBX infrastructure to our secure communications platform via encrypted SIP trunking. All signalling is encrypted with TLS and all media with SRTP, ensuring that calls between your office and the outside world are protected from eavesdropping.

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SIP over TLS 1.3 for signalling encryption
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SRTP with DTLS key exchange for media encryption
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Compatible with Cisco, Avaya, Microsoft Teams, and FreePBX
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IP whitelisting and SIP digest authentication 
// Secure SIP Trunk Configuration
{
  "trunk_type": "secure_sip",
  "transport": "TLS",
  "tls_version": "1.3",
  "media_encryption": "SRTP",
  "srtp_key_exchange": "DTLS",
  "authentication": "digest",
  "ip_whitelist": [
    "203.0.113.10/32",
    "198.51.100.0/24"
  ],
  "codec_priority": [
    "OPUS/48000",
    "G.722/16000",
    "G.711a/8000"
  ],
  "max_channels": 500,
  "failover": "geo-redundant"
}

Protect Your Communications Today

Deploy enterprise-grade encrypted voice and messaging for your organisation. Start with a free security assessment to understand your current communication vulnerabilities and how our platform addresses them.

Get Secure Access → Request Security Assessment