Authentication, Automation, Call Centers, Call Routing, Cellular Telephone, Cisco Network Systems, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Documentation, Extreme Network Systems, Firewalls, Help Desk, IP (Internet Protocol), Identify Issues, Mentoring, Network Administration/Management, Network Architecture/Engineering, Network Connectivity, Network Routers, Network Scalability, Network Security, Network Switching, Network System Hardware, On Call, Onboarding, Policy Development, Problem Solving Skills, Procedure Development, RADIUS (Remote Authentication Dial-In User Service), SIP (Session Initiation Protocol), Software Administration, Systems Administration/Management, Technical Support, Telecommunications Standards, Telephony, Usability Engineering, VLAN (Virtual Local Area Network), VPN (Virtual Private Network), VoIP (Voice over IP), Wireless Communications