Experience with alarm surveillance, call routing, SIP, media call flow, packet capture analysis, Juniper IP technologies, routers, switches, crypto devices, Cisco, VTC, voice services, EVoIP, ECVoIP, VoSIP, fly-away kits, DRSN, or DSN Core preferred. The DRSN Support Technician III supports DISA Global Operations Center operations at Scott AFB, providing mission-critical support for DISA, DISN, GIG, and Defense Red Switch Network services.