United States$5,000,000+
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H
Hamid Saeed
5
Universal FXO module worked without compatibility issues.
NIM-2FXO=
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2PORT NETWORK INTERFACE MOD FXO UNIVERSAL
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Name:
NIM-2FXO=
- Description:
- 2PORT NETWORK INTERFACE MOD FXO UNIVERSAL
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818268266904
- Condition:
- Warranty:
- 3
- List Price:
$748.81
- Price:
$224.6470% off
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NIM-2FXO= Overview
NIM-2FXO= is a compact telephony interface module designed for integration into high-performance routers and communication gateways. It provides two FXO ports with RJ-11 connectors, enabling reliable analog voice connectivity for traditional PSTN networks while supporting standard FXO signaling for efficient call routing.
This WAN module is engineered for modular chassis installations, ensuring a straightforward implementation in enterprise and branch office environments. Ideal for modernizing legacy voice infrastructures, the NIM-2FXO= offers robust performance and compatibility with industry-standard platforms.
NIM-2FXO= price is $224.64, a 70% saving from the Cisco list price of $748.81. NIM-2FXO= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NIM-2FXO= for additional pricing. Browse the full Cisco Isr 4000 Router Modules & Cards series or explore all Cisco products.
NIM-2FXO= Specifications
- Product Type
- Network Interface Module
- Module Type
- WAN
- Data Rate
- N/A
- Connector Type
- RJ-11
- Supported Protocols
- FXO
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista
- Max Speed
- N/A
- Supported Features
- Auto-sensing, Caller ID support
- Power Consumption
- 5W
- Interface Ports
- FXO
- Expansion Slots
- NIM
- Product Name
- NIM-2FXO=
- Height
- 1.75 inches
- Width
- 3.4 inches
- Depth
- 10.5 inches
- Weight
- 1.2 lbs
NIM-2FXO= Use Case
Hybrid VoIP Migration: Seamless PSTN Trunking Integration
In a mid-sized enterprise transitioning from legacy PBX to VoIP, the NIM-2FXO-2PORT NETWORK INTERFACE MOD FXO UNIVERSAL links two analog PSTN trunks directly into the Cisco ISR router. This ensures uninterrupted inbound/outbound calls during the IP migration, reduces hardware complexity by 25%, and accelerates time-to-service without requiring a full PBX rip-and-replace.
Enterprise Call Center Telephony Failover
A global call center deploys the NIM-2FXO-2PORT NETWORK INTERFACE MOD FXO UNIVERSAL as an on-premises PSTN backup for its primary SIP trunks. In the event of VoIP carrier outages, calls automatically redirect over the FXO ports, maintaining 99.99% availability, preserving customer service levels, and eliminating revenue-impacting downtime.
Remote Branch Analog Line Consolidation
A retail chain with 50 remote outlets uses the NIM-2FXO-2PORT NETWORK INTERFACE MOD FXO UNIVERSAL to aggregate two local analog lines at each site into the corporate VoIP network. This centralizes call management, reduces per-site telecom costs by 40%, and simplifies maintenance with a uniform Cisco ISR platform across all branches.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| NIM-2FXO= |  NIM-2MFT-T1/E1 |  NIM-1MFT-T1/E1 |  NIM-4FXSP |  NIM-2BRI-NT/TE | |
|---|---|---|---|---|---|
| Product Type | Network Interface Module | Network Module / Network Card | Network Module | Network Module | Network Interface Module |
| Module Type | WAN | WAN Module - T1/E1 | WAN Module | Ethernet | WAN |
| Data Rate | N/A | T1: 1.544 Mbps / E1: 2.048 Mbps | 1.544 Mbps / 2.048 Mbps | 10Gbps | N/A |
| Connector Type | RJ-11 | RJ-48 | RJ-48 | SFP+ | N/A |
| Supported Protocols | FXO | T1/E1 Framing, HDLC | N/A | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | Modular | PCIe | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista | Cisco Routers | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | N/A | T1: 1.544 Mbps / E1: 2.048 Mbps | 1.544 Mbps / 2.048 Mbps | 10Gbps | N/A |
| Supported Features | Auto-sensing, Caller ID support | Loopback Diagnostics, Error Monitoring | N/A | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / QoS |
| Power Consumption | 5W | 5W | 8W | 15W | N/A |
| Interface Ports | FXO | T1/E1 RJ-48 Ports | N/A | 4 x SFP+ | Ethernet |
| Expansion Slots | NIM | NIM | NIM | NIM | NIM |
| Product Name | NIM-2FXO= | NIM-2MFT-T1/E1 | NIM-1MFT-T1/E1 | NIM-4FXSP | NIM-2BRI-NT/TE |
| Height | 1.75 inches | N/A | 1.5 inches | N/A | N/A |
| Width | 3.4 inches | N/A | 3.4 inches | N/A | N/A |
| Depth | 10.5 inches | N/A | 5.0 inches | N/A | N/A |
| Weight | 1.2 lbs | N/A | 1.2 lbs | N/A | N/A |
Reviews & Ratings
E
Eric Johnson
4
Clear audio quality on all ports.
B
Bushra Rafi
5
Easy to deploy and manage.
V
Victor Perez
5
Reliable Cisco hardware.
A
Adeel Munir
5
No complaints so far.
H
Hamid Saeed
5
Universal FXO module worked without compatibility issues.
E
Eric Johnson
5
Clear audio quality on all ports.
B
Bushra Rafi
4
Easy to deploy and manage.
V
Victor Perez
5
Reliable Cisco hardware.
A
Adeel Munir
5
No complaints so far.
Questions & Answers
What is the Cisco NIM-2FXO= 2-Port Network Interface Module FXO Universal?
The Cisco NIM-2FXO= is a 2-port analog FXO network interface module that provides universal PSTN connectivity for compatible Cisco routers, enabling reliable voice gateway integration over analog lines.
How many FXO ports does the NIM-2FXO= module support?
The NIM-2FXO= module supports two FXO ports, allowing simultaneous PSTN calls on both analog interfaces.
Which Cisco router models are compatible with the NIM-2FXO=?
The NIM-2FXO= is compatible with select Cisco ISR G2 and ISR 4000 series routers; refer to the hardware installation guide for a comprehensive compatibility list.
Does the NIM-2FXO= support universal FXO signaling?
Yes, the NIM-2FXO= supports universal FXO signaling, including loop-start, ground-start, and optional polarity reversal for global PSTN deployments.
What cable type is required to connect the NIM-2FXO= to a PSTN line?
Use standard RJ-11 analog telephone cables to connect each FXO port on the NIM-2FXO= module to your PSTN voice ports.
How do I install the NIM-2FXO= module in my router?
Power down the router, remove the module slot cover, insert the NIM-2FXO= module until it clicks, secure the faceplate, and power on the device—then verify with show platform commands.
What configuration commands are needed to enable the FXO ports?
Enter global configuration mode, define voice ports with 'voice-port 0/0/0' and 'voice-port 0/0/1', set dial-peer parameters, and apply 'connection plar' as needed for PSTN dialing.
Which voice codecs does the NIM-2FXO= support?
The NIM-2FXO= supports G.711 μ-law, G.711 A-law, G.729, G.726, and G.723.1 codecs to optimize bandwidth and voice quality.
Can I hot-swap the NIM-2FXO= module?
No, the NIM-2FXO= module does not support hot-swapping; you must power down the router before installing or removing the module.
What is the maximum call capacity per FXO port?
Each FXO port on the NIM-2FXO= module handles one concurrent PSTN call, providing two simultaneous calls in total.
Does the NIM-2FXO= module include surge protection?
Yes, the NIM-2FXO= includes built-in surge and transient voltage protection to safeguard the router and connected PSTN lines.
What are the power requirements for the NIM-2FXO=?
The NIM-2FXO= module draws less than 2.5 watts from the router’s internal power supply; ensure your router meets its overall power budget.
How do I troubleshoot no dial tone on an FXO port?
Verify physical cable connections, confirm PSTN line activity, use 'show voice port' to check status, and review dial-peer configurations for correct PSTN access.
What warranty and support options are available?
The NIM-2FXO= module is backed by Cisco’s limited lifetime warranty and includes access to Cisco TAC support and software updates with a valid service contract.
Can I use the NIM-2FXO= for failover PSTN connectivity?
Yes, configure the NIM-2FXO= as a secondary voice gateway to provide PSTN failover in case of VoIP service interruptions.
Where can I purchase the Cisco NIM-2FXO=?
You can purchase the Cisco NIM-2FXO= module through authorized Cisco partners, distributors, or directly from the Cisco online store.