{"product_id":"cisco-nim-4fxo-refurbished","title":"Cisco NIM-4FXO 4-Port FXO Network Interface Module","description":"\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 900px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0892\/2431\/5249\/files\/Default-Product-Image.jpg?v=1780992596\" alt=\"Cisco NIM-4FXO\" style=\"width:200px; display:block; margin-bottom:16px;\"\u003e\u003ch1\u003eCisco NIM-4FXO – 4-Port FXO Network Interface Module\u003c\/h1\u003e\n\u003ch2\u003eTested to factory specification. Backed by 25 years of enterprise trust.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCisco NIM-4FXO\u003c\/strong\u003e (MPN: \u003cstrong\u003eNIM-4FXO\u003c\/strong\u003e) is a 4-Port Foreign Exchange Office (FXO) Network Interface Module designed for Cisco 4000 Series Integrated Services Routers (ISR). This module enables seamless PSTN and legacy PBX connectivity, allowing enterprises to integrate traditional analog phone lines directly into their unified communications infrastructure. Whether you are bridging legacy telephony with modern VoIP systems or building a resilient hybrid voice network, the NIM-4FXO delivers reliable, carrier-grade performance.\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cisco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e NIM-4FXO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Module – Network Interface Module (NIM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorts:\u003c\/strong\u003e 4 x FXO Analog Voice Ports\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Platforms:\u003c\/strong\u003e Cisco ISR 4000 Series (4321, 4331, 4351, 4431, 4451)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e NIM Slot Form Factor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Professionally Refurbished\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRefurbished Quality You Can Trust\u003c\/h2\u003e\n\u003cp\u003eThis unit is \u003cstrong\u003eprofessionally refurbished\u003c\/strong\u003e and tested to original Cisco factory specifications. Each module undergoes rigorous inspection, cleaning, and functional testing before shipment — ensuring performance that meets or exceeds OEM standards. Choosing refurbished means enterprise-grade reliability at a fraction of the cost of new hardware, backed by WhaleyComm's 25+ years of experience serving 5,000+ customers worldwide.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose WhaleyComm?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e – No time limits. No questions asked. If your unit fails under normal operating conditions at any point, we replace it. Period.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e25 Years of Enterprise Trust\u003c\/strong\u003e – Over two decades of experience and a proven track record with 5,000+ satisfied customers.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFast Shipping\u003c\/strong\u003e – Orders ship within 1–2 business days so your network stays on schedule.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHassle-Free Returns\u003c\/strong\u003e – Contact our support team for any DOA or warranty issues and we'll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4 analog FXO ports for PSTN and legacy PBX connectivity\u003c\/li\u003e\n\u003cli\u003eSupports voice and fax over IP (VoIP\/FoIP)\u003c\/li\u003e\n\u003cli\u003eCompatible with Cisco Unified Communications Manager (CUCM) and Cisco Unified CME\u003c\/li\u003e\n\u003cli\u003eHot-swap capable NIM form factor for flexible deployment\u003c\/li\u003e\n\u003cli\u003eCompact, modular design for ISR 4000 Series chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Orders ship within 1–2 business days from our warehouse. Fast fulfillment so your project doesn't wait.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns:\u003c\/strong\u003e We stand behind every unit we ship. Contact our support team for any DOA or warranty-related issues and we will resolve it promptly.\u003c\/p\u003e\n\u003ch2\u003eLifetime Warranty\u003c\/h2\u003e\n\u003cp\u003eEvery WhaleyComm unit ships with a \u003cstrong\u003eLifetime Warranty — No Time Limits. No Questions.\u003c\/strong\u003e If it fails under normal operating conditions at any point, we replace it. 25 years. 5,000+ customers. That's our promise.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Refurbished","offer_id":63895198204273,"sku":"NIM-4FXO","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/2431\/5249\/files\/Default-Product-Image_de6fbe70-aa7a-456b-a739-8f27b1a17582.jpg?v=1781170207","url":"https:\/\/www.whaleycomm.com\/products\/cisco-nim-4fxo-refurbished","provider":"Whaley Comm","version":"1.0","type":"link"}