Seven things to do to secure a VoIP network

In case your enterprise customers didn't get the point the first billion times you've told them, here it is again: enterprise VoIP networks are attractive and vulnerable to attack. Here's what they should do about it. 1: Encrypt traffic in hardware. 2: Put all VoIP traffic on the same VLAN, and put the VLAN behind separate firewalls. 3: Use secure gateways with multiple layers of encryption. 4: Monitor the network. 5: Keep up to date with patches (or use a hardened operating system). 6: Turn off network services you're not using. 7: Make your system redundant. Easy to say, harder to do than it sounds, and more expensive than the bean-counters may like. Ask the bean-counters how much a network outage would cost and security starts to look cheap.

For more information about VoIP security:
- read this article from VoIP News