The ETM® Voice Firewall secures your enterprise voice network edge and lowers telecom expenses through real-time prevention of TDM and VoIP attacks, fraud, unauthorized network access and usage, and service disruption and abuse. The Voice Firewall inspects and controls all inbound and outbound voice/UC network activity based on user-defined network access and service usage policies. It provides unified and consistent policy enforcement capabilities across multi-vendor, TDM and VoIP enterprise networks from a single administrative console. The ETM® Voice Firewall will help you:

•	Enforce enterprise-wide voice/UC access and usage policies.
•	Prevent service abuse and malicious or unwanted voice traffic to lower expenses and boost your security and compliance efforts.
•	Prevent unauthorized data network access and Internet use over phone lines.
•	Protect private customer information and enhance data leakage protection programs.
•	Increase revenues by providing a safer and more productive work environment.
•	Decrease legal risk and liability exposure, and aid security investigations.