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Table of Contents
Traditional Phone Systems – Risks & Limitations
VoIP & Cloud Telephony – Security Advantages
NFON: Your VoIP Provider for Privacy & Compliance
Legal Certainty & IT Compliance with NFON
Conclusion: Why Now Is the Time to Test VoIP for Greater Security & Efficiency
Traditional Phone Systems – Risks & Limitations
Many companies still operate with traditional telephony systems (PBXs) that have evolved over the years – and are now often outdated. These systems come with significant security vulnerabilities:
Outdated hardware without automatic updates
No encryption of call data
Lack of centralised security monitoring
Little to no protection from internal or external attacks
Criteria | Traditional PBX System | VoIP Solution |
Encryption | Not available or outdated | End-to-end encryption (e.g. SRTP/TLS) |
Location dependency | Fixed to physical location | Location-independent (cloud-based) |
Updates & maintenance | Manual, on-site | Automatic via the cloud |
GDPR compliance | Only with additional tools | Integrated with certified providers |
Scalability | Complex and inflexible | Flexible and easily scalable |
Multi-factor authentication | Rarely standardised | Standard with professional providers |
In addition, most of these systems are not GDPR-compliant, which poses a major risk – especially when dealing with sensitive customer data.
Continuing to use such systems compromises your compliance and undermines customer trust.
VoIP & Cloud Telephony – Security Advantages
Modern VoIP solutions for businesses offer not only more flexibility, but also much higher security standards. Unlike legacy systems, cloud telephony can be centrally updated, monitored, and encrypted – with minimal effort from your IT team.
Key security features that contribute to VoIP security include:
End-to-end encryption (e.g., SRTP / TLS 1.2+)
Hosting in certified EU data centres
Multi-factor authentication for administrators
Centralised access management & activity logging
GDPR-compliant communication and data handling
For companies, this means: more control, less risk – and a future-ready communication solution for distributed teams.
If you're planning to buy a VoIP phone system, make sure these features are included.
NFON: Your VoIP Provider for Privacy & Compliance
As a dedicated VoIP provider for businesses, NFON delivers a solution designed to meet the highest security requirements – both technically and legally.
NFON’s key security measures:
A secure VoIP solution for businesses – cloud-based, flexible and scalable
Hosting in ISO 27001-certified data centres in Germany and across the EU
VoIP with end-to-end encryption – for both conversations and metadata
Access control via multi-factor authentication and role-based permissions
GDPR-compliant processing of personal data
With NFON, businesses receive not just a high-performance communication system – but a certified and secure cloud phone system, ready to use and easy to manage.
Legal Certainty & IT Compliance with NFON
Security isn’t just about technology – compliance is just as important. Businesses today must ensure that communication processes are secure, fully documented and GDPR-compliant.
With the NFON platform, companies can:
Ensure legally compliant data storage and archiving
Maintain full control over user rights and call data
Generate transparent audit logs
Meet IT compliance standards for internal and external audits
For managing directors and IT leaders in regulated industries, this is a strong case for secure cloud-based telephony.
Conclusion: Now Is the Time to Test VoIP for Greater Security & Efficiency
VoIP solutions are not only more modern – they are demonstrably more secure than traditional PBX systems.
Companies that want to invest in future-ready communication should rely on proven providers that prioritise data protection and regulatory compliance.
With NFON, you get a GDPR-compliant VoIP solution, technically robust, reliable, and specifically tailored to the needs of SMEs.
Looking to replace your old PBX system or considering purchasing a VoIP phone system? Receive a non-binding consultation—or test NFON's secure VoIP solution for businesses with a free demo.
👉 Learn more about NFON now and experience how NFON can transform your communication.
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