Fxo Port Cisco

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Overview

Product sourcing insights & recommendations

www.cisco.com
www.cisco.com
27 来源

Cisco FXO (Foreign Exchange Office) ports remain a critical bridge for enterprises integrating legacy analog systems with modern VoIP and cloud communications CiscoCisco. While the broader VoIP gateway market is experiencing a decline as organizations shift toward pure cloud-native solutions, there is sustained demand for high-density hardware in industrial, hospitality, and hybrid cloud environments InformaCisco.

Product Insights & Latest Models

The current Cisco portfolio focuses on high-density and modularity through the Integrated Services Routers (ISR) 4000 Series and the newly released VG420 series voice gateways CiscoCisco.

* Latest Hardware: The Cisco VG420 series (updated mid-2026) is the flagship high-density analog voice gateway, offering up to 144 ports and running Cisco IOS-XE for enhanced security and performance CiscoCisco.

* Modular Connectivity: The NIM-2FXO and NIM-4FXO (Network Interface Modules) are the standard for 2 and 4-port analog trunk connectivity in ISR 4300 and Catalyst 8000 routers AtlasphonesCisco.

* Key Technical Features: Modern FXO modules support 128-ms tail length echo cancellation, battery reversal detection, and dedicated E-911 (CAMA) trunks CiscoCisco.

Market Trends & Outlook

The market is shifting from legacy hardware toward secure, hybrid signaling solutions Informa.

* SBC Integration: Enterprises are increasingly opting for "hybrid" devices that function as both an analog gateway and a Session Border Controller (SBC) to support SIP trunking and Microsoft Teams Direct Routing CiscoLinkedin.

* Growth in Managed Services: While individual gateway sales are declining at a CAGR of -8.1% (2026-2030), there is growth in Intelligent Voice Gateways managed via cloud platforms, with a projected CAGR of 13.8% through 2033 InformaLinkedin.

* Failover Priority: Survival features like Failover Bypass (linking FXS to FXO ports during power loss) are now standard requirements for mission-critical sites CiscoCisco.

I have identified current listings for these Cisco FXO modules and gateways from professional network hardware suppliers. Detailed pricing and availability can be found in the attached files below.

Based on these insights, you can proceed with:

Nim 4fxo Voice Interface Card

Products · 3 lists

NIM-4FXO=4-port FXO Analog Voice Module NIM Voice Card Is Suitable for ISR4321 4331 Router with Original Disassembly

NIM-4FXO=4-port FXO Analog Voice Module NIM Voice Card Is Suitable for ISR4321 4331 Router with Original Disassembly

$995.0(51)
MOQ: 1 piece
100% reorder rate≤2h response time
Beijing Ruilian Far Tong Network Technology Co., Ltd.Beijing Ruilian Far Tong Network Technology Co., Ltd.🇨🇳CN2 yrs
Asterisk Card 4 Port FXO/FXS PCI for VoIP IP PBX Digium TDM400P_04 Openvox ATCOM AX400P PSTN IIT/OEM

Asterisk Card 4 Port FXO/FXS PCI for VoIP IP PBX Digium TDM400P_04 Openvox ATCOM AX400P PSTN IIT/OEM

$320-4004.9(456)
MOQ: 1 piece
14% reorder rate≤3h response time
Shenzhen Immediate Technology Co., LimitedShenzhen Immediate Technology Co., Limited🇨🇳CN16 yrs
VIC3-4FXSDID 4-PORT VOICE INTERFACE CARD - FXS AND DID

VIC3-4FXSDID 4-PORT VOICE INTERFACE CARD - FXS AND DID

$273.8(399)
MOQ: 1 piece
11% reorder rate≤1h response time
Xiamen Hengyi Qiangsheng Trading Co., Ltd.Xiamen Hengyi Qiangsheng Trading Co., Ltd.🇨🇳CN1 yr
Original New 4 Port Network Interface Module Voice Interface Card Nim-4e/m

Original New 4 Port Network Interface Module Voice Interface Card Nim-4e/m

$61.204.4(870)
MOQ: 1 piece
Shenzhen City Tzj Tech Co., LtdShenzhen City Tzj Tech Co., Ltdverified🇨🇳CN5 yrs
VIC3-4FXS/DID 4-PORT VOICE INTERFACE CARD - FXS AND DID

VIC3-4FXS/DID 4-PORT VOICE INTERFACE CARD - FXS AND DID

$274.9(906)
MOQ: 1 piece
100+ store reviews29% reorder rate≤1h response time
Xiamen Global Yipin Trading Co., Ltd.Xiamen Global Yipin Trading Co., Ltd.🇨🇳CN2 yrs
NIM 1CE1T1 PRI 1 Port T1/E1 PRI Multiflex Trunk Voice WAN Interface Module for ISR 4000 Series Router

NIM 1CE1T1 PRI 1 Port T1/E1 PRI Multiflex Trunk Voice WAN Interface Module for ISR 4000 Series Router

$60-1205.0(301)
MOQ: 1 set
12% reorder rate≤2h response time
HUADA GROUP CO.,LTDHUADA GROUP CO.,LTD🇨🇳CN9 yrs
VIC2-2FXO Two-Port Voice Interface Card FXO 800-33584-01

VIC2-2FXO Two-Port Voice Interface Card FXO 800-33584-01

$544.9(559)
MOQ: 1 piece
21% reorder rate≤1h response time
Xiamen Global Shengda Electronics Co., Ltd.Xiamen Global Shengda Electronics Co., Ltd.🇨🇳CN1 yr
Wireless Ethernet 1Port Trunk Voice/Clear-channel Data T1/E1 Interface Module NIM-1MFT-T1/E1 External Stock

Wireless Ethernet 1Port Trunk Voice/Clear-channel Data T1/E1 Interface Module NIM-1MFT-T1/E1 External Stock

$180-2304.9(965)
MOQ: 1 piece
100+ store reviews9% reorder rate≤1h response time
Beijing Lianmai Tongchuang Technology Co., Ltd.Beijing Lianmai Tongchuang Technology Co., Ltd.verified🇨🇳CN8 yrs
MEO PCI 56K Fax/Voice Modem Adapter Card RJ11 Interface Win XP/Vista/7/8 32/64-Bit V.92/V.90 Desktop in Stock

MEO PCI 56K Fax/Voice Modem Adapter Card RJ11 Interface Win XP/Vista/7/8 32/64-Bit V.92/V.90 Desktop in Stock

$6.504.8(771)
MOQ: 1 bag
100+ store reviews12% reorder rate≤5h response time
Shantou Meiyiou Electronic Technology Co., Ltd.Shantou Meiyiou Electronic Technology Co., Ltd.🇨🇳CN8 yrs
New Vic32em 2port Voicefax Interface Card Original Ready Stock Industrial Automation Pac Dedicated Plc PLC

New Vic32em 2port Voicefax Interface Card Original Ready Stock Industrial Automation Pac Dedicated Plc PLC

$4505.0(422)
MOQ: 1 piece
23% reorder rate≤1h response time
Xiamen Huanqiu Luming Trading Co., Ltd.Xiamen Huanqiu Luming Trading Co., Ltd.🇨🇳CN1 yr
2024 SX91 Professional Live Sound Card Audio Interface with Multiple Effects Noise Cancelling Function for Live Streaming

2024 SX91 Professional Live Sound Card Audio Interface with Multiple Effects Noise Cancelling Function for Live Streaming

$21.264.7(159)
MOQ: 2 pieces
300+ store reviews14% reorder rate≤2h response time
Jiangmen Weikai Electronics Co., Ltd.Jiangmen Weikai Electronics Co., Ltd.🇨🇳CN2 yrs
CISCOs NIM-4FXSP Original New Voice Module 4-Port FXS Network Interface Module for Cisco ISR 4000 Router

CISCOs NIM-4FXSP Original New Voice Module 4-Port FXS Network Interface Module for Cisco ISR 4000 Router

$291-3754.8(727)
MOQ: 1 piece
≤6h response time
Hangzhou Nanyin Trading Co., Ltd.Hangzhou Nanyin Trading Co., Ltd.🇨🇳CN3 yrs
NIM-1MFT-T1/E1 1 Port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module Interface Card 1 Year Warranty SNMP QoS Support

NIM-1MFT-T1/E1 1 Port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module Interface Card 1 Year Warranty SNMP QoS Support

$1694.6(848)
MOQ: 2 pieces
≤3h response time
Wuhan Chiyu Technology Co., Ltd.Wuhan Chiyu Technology Co., Ltd.🇨🇳CN4 yrs
NIM-1MFT-T1/E1 1 Port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module Interface Card 1 Year Warranty SNMP QoS Support

NIM-1MFT-T1/E1 1 Port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module Interface Card 1 Year Warranty SNMP QoS Support

$163-1694.7(848)
MOQ: 2 pieces
Wuhan Chiyu Technology Co., Ltd.Wuhan Chiyu Technology Co., Ltd.verified🇨🇳CN5 yrs

Sources & References

27 sources cited · Verified industry data & reports

Cisco SPA8800 IP Telephony Gateway with 4 FXS and 4 FXO Ports: ...

www.cisco.com

External Gateway Solution for an On-Premise PBX Developed for small businesses, the Cisco® SPA8800 IP Telephony Gateway (Figure 1) adapts to the needs of businesses that maintain their own on-premise IP private branch exchange (PBX) or that want to add voice over IP (VoIP) to their legacy time-division multiplexing (TDM) PBX or key system. The SPA8800 can be configured to be a FXO gateway for an Asterisk open source PBX, providing a versatile solution when conditions favor an external device. Powered by industry-leading VoIP technology from Cisco, the SPA8800 is designed with a solid hardware casing and contains many standard features, including four RJ-11 FXS and four FXO ports, a 10/100BASE-T RJ-45 Ethernet interface to connect to either a router or multilayer switch, and an auxiliary port for local administration. Table 1 contains the specifications and package contents for the Cisco SPA8800 IP Telephony Gateway with 4 FXS and 4 FXO Ports. Table 2 compares the Cisco SPA8800 with other Cisco Small Business Voice products.

Troubleshoot and Monitor Analog Ports - Cisco

www.cisco.com

An FXOport (or device) is the port that connects to the circuit, which has the ability to go on/off the hook and transmit digits when off-hook to initiate a call. It employs a relay that when the port is off-hook, the circuit is closed, and when the port is considered on-hook, the circuit is open. An FXS port is the device that connects to the circuit and provides dial tone and ringing voltage to an FXO device. An FXS port connects a gateway to equipment such as telephones, fax machines, and modems. An FXS port utilizes only two wires (Tip and Ring) for the signaling and audio path on a given call. The fxols_power_denial_detected event is triggered when there is no loop current detected on the line. By default, there is a 750 msec timer started. If the DSP does not detect the current before the timer expires, it disconnects the call. The timer can be modified under the voice-port configuration mode with the timeouts power-denial command. Foreign Exchange Station (FXS)/Foreign Exchange Office (FXO) is the typical analog circuit used to deliver a single analog phone line to your house.

High-Density Analog Voice and Fax Service Modules for Cisco 4000 ...

www.cisco.com

The Cisco® High-Density Analog Voice and Fax Service Modules provide enterprises, managed services providers, and service providers the ability to directly connect public-switched telephone networks (PSTNs) and existing telephony equipment to Cisco 4000 Series Integrated Services Routers (ISRs). These fixed-port (FXS and FXO) modules provide Dual-Tone Multifrequency (DTMF) detection, voice compression and decompression, call progress tone generation, Voice Activity Detection (VAD), echo cancellation, and adaptive jitter buffering. The FXO port is used to connect to PBX or key systems, or to provide off-premises connections to the PSTN. It supports battery reversal detection and caller ID. The FXO port is also used to connect to analog Centralized Automatic Message Accounting (CAMA) trunks to provide dedicated E-911 service (in North America only). Table 2 summarizes the supported FXO failover bypass feature in each service module.

Cisco 2-Port FXO Voice Interface Card (NIM-2FXO) – Atlas Phones

www.atlasphones.com

The Cisco 2-Port FXO Voice Interface Card (NIM-2FXO) is designed for Cisco routers to provide connectivity for analog telephone lines. It supports Foreign Exchange Office (FXO) interfaces, enabling the integration of traditional analog telephony systems with Cisco Unified Communications solutions. It enables businesses to integrate their traditional analog telephony services with IP-based communication systems, providing a seamless bridge between the public switched telephone network (PSTN) and VoIP solutions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Port FXO Interface:\u003c\/strong\u003e Connects up to four analog telephone lines to Cisco routers using RJ-11 connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePSTN Connectivity:\u003c\/strong\u003e Integrates analog phone lines with IP telep 2-Port FXO Interface: Connects two analog phone lines to Cisco routers. Quick View {"id":330385260574,"title":"Cisco 4-Port FXO Voice Interface Card (VIC2-4FXO)","handle":"cisco-4-port-fxo-voice-interface-card-vic2-4fxo","description":"\u003ch2\u003eCisco 4-Port FXO Voice Interface Card\u003c\/h2\u003e\n\u003cp\u003eThe Cisco 4-Port FXO Voice Interface Card is designed for Cisco routers to connect up to four analog telephone lines using Foreign Exchange Office (FXO) interfaces.

Accessories - Interfaces, Modules, and Cards - Support and Downloads ...

www.cisco.com

Voice Interface Card | Cisco 4-Port FXO | VIC2-4FXO | Lifetime ...

www.cablesandkits.com

The Cisco Foreign Exchange Office (FXO) interface is an RJ-11 connector that allows an analog connection to be directed at the public switched telephone network's (PSTN's) central office or to a station interface on a private branch exchange (PBX). The FXO sits on the switch end of the connection. It plugs directly into the line side of the switch so the switch thinks the FXO interface is a telephone.

Cisco FXO Port Hardware Guide: VG420, NIM-2FXO, NIM-4FXO