Cisco NIM-2FXO Expansion Module
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NIM-2FXO Cisco 2 Ports Voice Interface Card Refurbished

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Part Number#: NIM-2FXO
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Short Description:
NIM-2FXO Fourth-Generation Network Interface Module - Voice / FAX Module - 2 Port FXO (Universal) | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Overview of Cisco NIM-2FXO Interface Module

The Cisco NIM-2FXO is a Fourth-Generation Network Interface Module designed to enhance voice and fax capabilities in Cisco networking devices. This module specifically features 2 Port FXO, providing universal compatibility for connecting to analog phone lines.

Purpose of a Network Interface Module (NIM)

A Network Interface Module, like the Cisco NIM-2FXO, serves as a modular component within a networking device. It expands the device's functionality, in this case, focusing on voice and fax capabilities, and allows for seamless integration of various communication interfaces.

Understanding the Technical Specifications

Fourth-Generation Module

  • Fourth-Generation Technology: This signifies that the module belongs to the fourth generation of Cisco's network interface modules, featuring the latest advancements and improvements in technology and functionality.

Voice/FAX Module

  • Voice and FAX Capabilities: The module is designed to handle voice and fax communication, making it suitable for applications that require telephony services over the network.

2 Port FXO (Universal)

  • 2 Port FXO: The module comes equipped with two Foreign Exchange Office (FXO) ports, allowing connectivity to analog phone lines. FXO ports are used to connect to the telephone service provider's network.
  • Universal Compatibility: The FXO ports on this module are universal, meaning they can connect to various types of analog phone lines, offering flexibility and compatibility.

Importance of Voice/FAX Modules in Networking

Telephony Integration

  • Voice/FAX modules enable the integration of telephony services into data networks, allowing for unified communication and collaboration.

Analog Connectivity

  • Modules with FXO ports facilitate the connection between digital networks and traditional analog phone lines, supporting communication with standard telephone networks.

Versatility in Communication

  • By supporting both voice and fax, these modules cater to a range of communication needs, ensuring versatility in handling different types of telecommunication services.

Application in Cisco Networking Devices

Integration into Cisco Devices

  • The Cisco NIM-2FXO module is specifically designed for seamless integration into Cisco networking devices, enhancing their capabilities in voice and fax communication.

Networking Flexibility

  • This module provides networking flexibility by allowing Cisco devices to interface with analog phone lines, enabling communication with traditional telephony networks.

Benefits of Cisco NIM-2FXO Module

Enhanced Communication Capabilities

  • The module enhances communication capabilities by providing voice and fax support, allowing for a broader range of telecommunication services.

Connectivity Options

  • With 2 FXO ports, the module offers multiple connectivity options to analog phone lines, ensuring reliable and versatile communication.

Integration with Cisco Infrastructure

  • Designed for Cisco devices, the module seamlessly integrates with existing Cisco infrastructure, maintaining compatibility and ease of use.

Traffic Analysis and Performance Metrics

The NIM-2FXO Cisco 2 Ports Voice Interface Card supports traffic analysis and provides performance metrics through various tools, including:

  • Cisco IOS Embedded Packet Capture (EPC): EPC is a feature that allows for capturing and analyzing packets flowing through the network. The NIM-2FXO card supports EPC, which provides the ability to capture and analyze voice and signaling packets, as well as to monitor call quality and troubleshoot issues.
  • Network-Based Application Recognition (NBAR): NBAR is a tool that provides deep packet inspection capabilities for network traffic analysis. The NIM-2FXO card supports NBAR, which can help to identify and prioritize voice traffic, as well as to monitor and troubleshoot performance issues.
  • Cisco Unified Communications Manager (UCM) Real-Time Monitoring Tool (RTMT): RTMT is a tool that provides real-time monitoring of voice and video quality, as well as system performance. The NIM-2FXO card can be monitored using RTMT to track call quality, call volumes, and other performance metrics.
  • Cisco Performance Monitoring (CPM): CPM is a tool that provides performance metrics and statistics for voice and video traffic. The NIM-2FXO card supports CPM, which can be used to monitor and troubleshoot issues related to call quality, jitter, packet loss, and other performance parameters.

Expanding Storage Capacity

The NIM-2FXO is a Cisco 2-ports voice interface card designed for connecting analog telephony devices to a Cisco Integrated Services Router (ISR) platform.

To expand the storage capacity of the NIM-2FXO card, you would need to add an external storage device such as a USB flash drive or an external hard drive. This external storage device can be connected to the USB port on the router.

Once the external storage device is connected to the router, you can configure the router to use the external storage device as a location for storing call records or other voice data. This can be done using Cisco Unified Communications Manager or other software applications that manage voice traffic on the network.

Keep in mind that the storage capacity of the external storage device should be sufficient to accommodate the volume of voice data that will be stored. It is recommended to use a high-quality, reliable storage device to ensure data integrity and avoid data loss.

Additionally, it's important to note that the NIM-2FXO card itself does not have any internal storage capacity, so expanding its storage capacity is only possible through the use of an external storage device.

Benefits and Advantages

The NIM-2FXO Cisco 2 Ports Voice Interface Card offers several benefits and advantages for voice communication applications, including:

  • Versatility: The NIM-2FXO card is a versatile solution that supports voice communication over traditional PSTN networks. It is compatible with various analog telephony devices, including phones, fax machines, and modems.
  • Scalability: The NIM-2FXO card provides a scalable solution for voice communication applications, allowing businesses to expand their communication infrastructure as needed. Multiple cards can be installed on a single Cisco router, providing additional ports for voice communication.
  • Cost-effective: The NIM-2FXO card is a cost-effective solution for businesses that need to integrate analog telephony devices into their voice communication infrastructure. It eliminates the need for expensive dedicated PBX systems, which can be costly to maintain and upgrade.
  • High-quality voice communication: The NIM-2FXO card provides high-quality voice communication, with support for various codecs such as G.711, G.729a, and G.726. It also supports echo cancellation, noise reduction, and voice activity detection, which help to ensure clear and reliable voice communication.
  • Easy management and configuration: The NIM-2FXO card is easy to manage and configure using the Cisco IOS command-line interface (CLI) or graphical user interface (GUI). This allows businesses to quickly set up and manage their voice communication infrastructure.
  • Interoperability: The NIM-2FXO card is designed to work seamlessly with other Cisco Unified Communications solutions, including Cisco Unified Communications Manager (UCM) and Cisco Unified Border Element (CUBE). This ensures interoperability and compatibility with other components of the communication infrastructure.

General Information about this Cisco NIM-2FXO

  • Manufacturer: Cisco
  • Model Number or SKU# NIM-2FXO
  • Product Type: Voice Interface Card (VIC)

Technical Information

  • Application/Usage: Voice


  • Interfaces/Ports Details: 2 x FXO Network


  • Compatibility: Cisco 4451-X Integrated Services Router

In summary, the Cisco NIM-2FXO Fourth-Generation Network Interface Module is a valuable component that enhances voice and fax capabilities in Cisco networking devices. With its 2 Port FXO (Universal) design, it provides universal compatibility, versatility, and seamless integration with Cisco networking infrastructure.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

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