How to: Encrypt Your VoIP

[techpr]

VoIP traffic flows across the Internet in unencrypted packets, which means anyone that has access to the network between sender and recipient can intercept them. Here are 5 methodologies to secure yourself against these attacks: Zfone, Built-in Encryption, Transport Layer Security and IP Security, Secure Real-Time Transfer Protocol and VPN.

More... (http://digg.com/security/How_to_Encrypt_Your_VoIP)