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The ETM System is a PBX/soft switch-independent, easy-to-use platform that supports security and management applications for real-time visibility, security, and control of telecommunications resources across the enterprise. Primary components of the ETM System are the ETM Appliances, custom designed devices installed inline on the telecommunication circuits to monitor and control VoIP, PRI, CAS, SS7, and analog voice traffic. The system uses a C library of TDES encryption routines to secure their network communications.