Voice networks are increasingly targeted by cybercriminals. From toll fraud to eavesdropping, the threats are real — but so are the defenses. Here's how to protect your business communications.
Encryption is Non‑Negotiable
Ensure your VoIP provider uses TLS (Transport Layer Security) for signaling and SRTP (Secure Real‑Time Transport Protocol) for media. This prevents attackers from intercepting calls or stealing credentials.
Implement Strong Access Controls
Use multi‑factor authentication for admin portals and limit access to only those who need it. Regularly audit user accounts and remove former employees immediately.
Monitor for Fraud
Set up alerts for unusual calling patterns — high international traffic, calls outside business hours, or sudden spikes in usage. VoIP fraud can rack up thousands in charges within hours.
Keep Firmware Updated
IP phones are small computers. Regularly update their firmware to patch vulnerabilities. Work with a provider that manages this proactively.
American Digital Communications includes security monitoring with every deployment. Contact us to discuss your security posture.