SM-X-16FXS/2FXO-RF Cisco 16 x Ports RJ-21 FXS + 2 x Ports RJ-21 FXO High Density Along Voice Module for 4000 Series Integrated Service Router

Elevate your Cisco 4000 Series Integrated Service Router with the SM-X-16FXS/2FXO-RF high‑density voice module, engineered to deliver seamless analog connectivity and robust voice performance. This compact, rack‑mounted solution expands your router’s telephony capabilities, allowing you to connect multiple FXS and FXO interfaces without sacrificing space or reliability. Designed for demanding enterprise environments, it offers reliable, low‑latency voice handling and easy integration with existing Cisco infrastructure. Whether you’re consolidating legacy PBX systems or expanding your VoIP deployment, this module delivers the flexibility and quality you need to keep your communications running smoothly.