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VIC3-4FXS/DID
Four-Port Voice Interface Card - FXS and DID
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VIC3-4FXS/DID is a voice interface card designed to bring reliable analog telephony connectivity directly into modern unified communications systems. Built with four FXS ports supporting Direct Inward Dialing (DID), the card uses standard RJ-11 connectors and a modular form factor to facilitate seamless integration into existing voice gateways and telephony infrastructures.
Engineered for efficient call handling and clear voice quality, the VIC3-4FXS/DID is ideal for enterprise branch offices and call centers that require robust analog interfacing. It supports industry-standard voice protocols such as SIP and H.323 and is optimized for deployment within secure, high-performance communication environments, helping organizations expand their telephony capabilities with minimal disruption.
VIC3-4FXS/DID price for new stock is $357.00. VIC3-4FXS/DID refurb price is $52.50. VIC3-4FXS/DID is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for VIC3-4FXS/DID for additional pricing. Browse the full Vic Vic2 Vic3 Voice Cards series or explore all Cisco products.
In a 200-seat co-working facility, IT teams deploy the VIC3-4FXS/DID Four-Port Voice Interface Card – FXS and DID in a Cisco ISR router to aggregate analog POTS lines and deliver individual DID numbers to tenant auto-attendants. By centralizing analog trunk termination and DID routing on a single platform, administrators achieve simplified dial-plan management, reduced hardware footprint, and a 30% reduction in per-seat telephony costs.
A retail chain leverages the VIC3-4FXS/DID card in its regional routers to connect local analog registers and credit-card terminals back to a centralized IP-PBX using DID mapping. This setup preserves existing analog devices, ensures consistent dial-tone quality, and enforces corporate numbering plans. The unified architecture lowers maintenance overhead by 40% and accelerates branch deployment from weeks to days.
A global contact center implements the VIC3-4FXS/DID Four-Port Voice Interface Card – FXS and DID in its secondary data center to instantly redirect inbound DID calls to analog survival trunks during IP-SIP outages. Automated routing scripts detect primary link failures and switch to FXS ports, ensuring uninterrupted customer support. This resilient design meets 99.99% uptime SLAs and eliminates costly third-party DR services.
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| VIC3-4FXS/DID |  VIC2-2FXO |  VIC2-2BRI-NT/TE |  VIC2-4FXO |  VIC2-2E/M | |
|---|---|---|---|---|---|
| Product Type | Voice Interface Card | Voice Interface Card | Network Module / Network Card | Voice Interface Card | Network Module / Network Card |
| Connector Type | RJ-11 | RJ-11 | RJ-45 | RJ-11 | SFP+ |
| Supported Protocols | SIP/H.323 | SIP, SS7 | TCP/IP | Analog Telephony | TCP/IP |
| Form Factor | Modular | Modular | PCIe | Modular | PCIe |
| 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 |
| Compatibility | Cisco Unified Communications systems, Voice Gateways | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco | Cisco / Juniper / Dell / HP |
| Supported Features | Caller ID, Call Waiting, Direct Inward Dialing | FXO Port Supervision, DTMF Detection | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | FXO Signaling, Caller ID | Auto-negotiation, Jumbo Frames, QoS |
| Interface Ports | FXS | FXO | Ethernet | FXO | Ethernet |
| Product Name | VIC3-4FXS/DID | VIC2-2FXO | VIC2-2BRI-NT/TE | VIC2-4FXO | VIC2-2E/M |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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Reviewed on the 20 August 2019
This card is perfect for our setup. The VIC3-4FXS/DID integrates easily with our system, ensuring stable and clear voice communication.
Reviewed on the 14 December 2021
The VIC3-4FXS/DID is a great addition to our network. It ensures clear, high-quality voice communication with no interruptions.
Reviewed on the 3 May 2026
We rely on the VIC3-4FXS/DID for reliable voice communication. It performs flawlessly, handling multiple channels effortlessly.
Reviewed on the 6 January 2020
The VIC3-4FXS/DID is an essential card for our network. It handles voice traffic smoothly, providing reliable, high-quality communication.
Reviewed on the 30 January 2025
The VIC3-4FXS/DID provides excellent performance. It's reliable, easy to manage, and ensures seamless voice communication for our business.
The VIC3-4FXS/DID is a four-port FXS voice interface card with DID support, designed for Cisco routers to connect analog phones, fax machines or doorbells directly to your voice network.
The VIC3-4FXS/DID provides four FXS ports and supports Direct Inward Dialing (DID) on each port, allowing individual numbering for up to four simultaneous inbound voice channels.
The VIC3-4FXS/DID is compatible with Cisco 2600, 3600, 3700 and 7200 series routers running IOS 12.2(4)T or later with the appropriate voice feature set.
Power down the router, insert the VIC3-4FXS/DID into an available WIC slot, secure the card with the retention screw, then power on and verify module recognition in IOS.
Key features include four FXS ports, DID support, ring detection, caller ID, programmable ring cadence, on-card echo cancellation and flexible dial-peer configuration for analog integration.
In IOS voice-port configuration, assign ephone-dn or dial-peer patterns to each FXS port, then map external DID numbers to internal extensions using the dial-peer incoming called-number command.
Yes, the VIC3-4FXS/DID supports FSK and DTMF caller ID between the first and second ring on North American and many international PSTN networks.
The card supports G.711 µ-law and a-law for high-fidelity voice, and can interoperate with G.729 codec when configured via dial-peer voice-class codec settings.
Yes, each FXS port provides analog dial tone, ring voltage and battery feed to standard POTS devices such as telephones, fax machines and modems.
The VIC3-4FXS/DID supports up to four concurrent inbound or outbound calls—one per FXS port—assuming sufficient router CPU and DSP resources.
The VIC3-4FXS/DID consumes approximately 3.5 watts of power, drawing from the host router’s power supply without requiring an external power source.
Firmware updates for the VIC3-4FXS/DID are bundled within Cisco IOS releases; simply upgrade your router IOS to the latest recommended image to benefit from enhancements.
Verify echo cancellation settings, inspect cabling and ring voltage, run debug voice ccapi in the IOS CLI, and ensure proper dial-peer and codec configuration.
Cisco offers a limited lifetime warranty on the VIC3-4FXS/DID with 90-day technical support; extended service contracts and SMARTnet® are available for enhanced coverage.
FXS ports provide line voltage to analog devices; FXO ports accept PSTN line voltage (not present on this card); DID allows direct call routing to individual FXS ports.
Visit Cisco’s official website, navigate to the product support section, enter SKU VIC3-4FXS/DID and download datasheets, configuration guides and IOS images.
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