I’ve been seeing more and more businesses move their entire phone systems to VoIP, which makes sense — it’s flexible, cost-effective, and perfect for remote work setups. But one thing I’ve noticed is that many overlook a critical security measure: a VoIP Firewall.
A VoIP Firewall isn’t just your standard network firewall — it’s designed specifically to protect VoIP traffic (SIP, RTP, etc.) from threats like:
SIP attacks and call hijacking
Toll fraud and unauthorized usage
Denial-of-Service (DoS) attacks
Eavesdropping on voice calls
Unlike generic firewalls, a VoIP-aware firewall can:
Inspect VoIP packets in real-time without affecting call quality.
Apply rules for specific VoIP protocols.
Block suspicious IPs while allowing legitimate traffic.
If you’re running an IP PBX, SIP trunk, or connecting remote VoIP users, adding a VoIP Firewall can save you from downtime, inflated bills, and serious data breaches.