6-Ports (4x FXS Network and 2x FXO Network Ports) Voice Interface Card for 4451-X Integrated Services Router

Enhance your 4451‑X Integrated Services Router with this versatile 6‑port voice interface card, designed to deliver reliable, high‑quality telephony for businesses of all sizes. With four FXS ports for connecting internal extensions and two FXO ports for connecting to external telephone lines, the card provides seamless integration of voice services into your existing network infrastructure. Its compact, hot‑swappable design allows for effortless installation and future‑proofing, while advanced call handling and routing capabilities ensure crystal‑clear communication and uninterrupted service. Ideal for small‑to‑medium enterprises, this card delivers scalable voice solutions that grow with your business.

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