For organizations transmitting sensitive documents over the internet, the question of how data is protected in transit is not optional. It is a compliance requirement. When businesses evaluate cloud fax solutions, they need to understand the specific security mechanisms their provider uses. For Faxination by Fenestrae, TLS (Transport Layer Security) is a foundational layer of protection built into the Fax Connector architecture.
Here is what TLS does, how it works inside Faxination’s cloud connectors, and why it matters for your organization’s security and compliance posture.
What Is TLS?
Transport Layer Security is a cryptographic protocol designed to provide secure communication over computer networks. It is the evolved successor to SSL (Secure Sockets Layer) and is the same technology that secures HTTPS websites, online banking sessions, and healthcare portal logins. When you see a padlock icon in your browser’s address bar, TLS is what is protecting that connection.
In the context of faxing, TLS is used to secure the signaling layer of a fax transmission. Fax over IP (FoIP) systems transmit faxes using SIP (Session Initiation Protocol) to establish and manage the communication session. TLS encrypts that SIP signaling traffic, ensuring that the setup and control of the fax call cannot be intercepted or tampered with.
TLS in Faxination’s Cloud Connectors
Faxination’s Cloud Connectors use TLS to encrypt SIP signaling as part of a secure FOIP (Fax over IP) solution. This means that every fax connection established through the cloud connector is protected at the signaling level before any document content is even transmitted.
But signaling is only one part of the equation. The actual media stream, meaning the fax content itself, is also encrypted. Faxination incorporates SRTP (Secure Real-time Transport Protocol) to encrypt media streams during transmission, adding a second layer of protection on top of TLS. SRTP is specifically designed for real-time communications and ensures that the document content traveling over the network cannot be read by unauthorized parties.
The result is a layered security model where both the call setup (TLS) and the document content (SRTP) are independently encrypted. This dual-protocol approach is considerably more robust than what older analog or unencrypted FoIP systems can offer.
Why TLS Matters for Compliance
For organizations operating in regulated industries, TLS-encrypted fax transmission directly supports compliance with frameworks including:
HIPAA requires that electronic protected health information (ePHI) be protected in transit using appropriate technical safeguards. TLS encryption satisfies this requirement for fax transmissions containing patient records, referral authorizations, and clinical documentation.
GDPR mandates that personal data be protected during transfer using appropriate technical measures. TLS-encrypted faxing supports this requirement for organizations with EU-based operations or EU data subjects.
PCI-DSS requires strong cryptography for the transmission of cardholder data. For financial services organizations that transmit payment-related documents by fax, TLS is a required safeguard.
SOX and financial regulations more broadly require audit trails and secure document handling for financial reporting and transaction documentation. Faxination’s logging and encryption capabilities support these requirements.
On-Premise Connectors and Security
TLS security is not limited to cloud deployments. Fenestrae’s on-premise connectors are also designed to support secure document exchange within and between enterprise systems. Whether your organization uses the SMTP connector to route faxes through email protocols, the REST API connector to integrate faxing with custom applications, the MFP connector to route scanned documents from multifunction printers, or the Inbound Directory Connector to capture incoming faxes to a network folder, security controls are built into the connector framework.
Administrators can control user access and faxing privileges at the connector level, and Faxination logs and archives all faxing messages for compliance monitoring and audit support.
Keeping Pace With Security Standards
Fenestrae continuously improves its security posture across both cloud and on-premise products. Recent updates to Faxination include enhanced TLS security measures specifically designed to give customers greater confidence in the protection of their fax communications. This commitment to ongoing improvement means that the security capabilities of your Faxination deployment grow alongside the evolving threat landscape.
For organizations evaluating cloud fax security, the question should not be whether faxing is secure. With the right provider, it absolutely is. The question is whether your current fax solution uses modern encryption protocols like TLS and SRTP, enforces user authentication and access control, maintains comprehensive audit logs, and meets the compliance requirements of your industry.
Faxination does all of this by design.
Learn more about Faxination’s Fax Connectors and their security features, or contact Fenestrae to discuss how cloud faxing can strengthen your organization’s document security.
