Cisco 3945E-V/K9 Unified Communications Software License

The Cisco 3945E-V/K9 Unified Communications Software License adds a Unified Communications license to the Cisco 3900 Series ISR G2 Voice Router, enabling integrated UC features alongside high‑performance routing for enterprise networks. The product is an Integrated Services Voice Router Bundle that supports modular WAN interfaces, 4 × Gigabit Ethernet LAN ports, EHWIC slots, and service module expansion to fit growing branch office or multi‑site deployments. It delivers integrated VoIP gateway and SIP trunk support with VPN and firewall security, running Cisco IOS software on a multi‑core CPU in a rack‑mount form factor. Commonly deployed in corporate branches, call centers, and distributed UC environments, it helps manage voice and data traffic across multiple sites while supporting Cisco Unified Communications solutions.