Provide remote break-fix and engineering support for routers, LAN and data center switches, firewalls, load balancers, network access control, Cisco ACI/APIC, WAN edge devices, VPN infrastructure, routing protocols, switching protocols, VLANs, segmentation, QoS, and high-availability pairs or clusters. Support voice and unified communications platforms including AudioCodes Routing Manager, One Voice Operations Center, Session Border Controllers, MediaPack gateways, SIP trunks, Cisco Webex Contact Center, and Microsoft Teams voice/Direct Routing integration.