Provide in‐depth engineering analysis of Unified Communications alternatives for government public safety agencies in support of strategic modernization efforts and Unified Communications enhancement design for medium and large scale telecommunication infrastructures to include 9-1-1. Knowledge and experience with configuration and maintenance of: gateways, routers, switches, firewall, DNS, DHCP, network servers platforms, TDM, Dialogic, VoIP systems (SIP, H.323 protocols, dial peers, and VoIP carrier trunking).