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.