Contents

Securing Voice Over IP  Basic Configuration  SIP Based VoIP  SIP Advanced Configuration  MGCP-Based VoIP  H.323-Based VoIP     Introduction to H.323     Supported H.323 Deployments and NAT Support     H.323 Security Rule Base Configuration        H.323 Specific Services        General Guidelines for H.323 Security Rule Configuration        H.323 Rule for an Endpoint-to-Endpoint Topology        H.323 Rules for a Gatekeeper-to-Gatekeeper Topology        H.323 Rules for a Gateway-to-Gateway Topology        H.323 Rules for a Gatekeeper in the External Network        H.323 Rules for a Gateway in the External Network        H.323 Rules for a Gatekeeper in DMZ Topology        H.323 Rules for a Gateway in DMZ Topology  SCCP-Based VoIP  IPS for VoIP  VoIP Logging and Queries in SmartView Tracker  Index