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Cisco voice interface module with 4 FXO ports for PSTN connectivity on ISR 4000 routers. Read more
The Cisco NIM-4FXO= is a 4-port FXO (Foreign Exchange Office) Voice Interface Network Module designed for Cisco ISR 4000 Series Integrated Services Routers. It enables direct connection to analog Public Switched Telephone Network (PSTN) lines, allowing businesses to integrate legacy telephony with modern VoIP and unified communications systems.
This module is ideal for branch offices and enterprise environments that require analog line connectivity for voice gateways, backup calling, or hybrid telephony deployments. It provides reliable voice connectivity and seamless integration with Cisco Unified Communications solutions.
| Specifications | Descriptions |
|---|---|
| Model | NIM-4FXO= |
| Ports | 4 × FXO Analog Voice Ports |
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