Cisco
Cisco VIC3-4FXS/DID 4-Port FXS/DID Voice Fax Interface Card
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Cisco VIC3-4FXS/DID — 4-Port Voice/Fax Interface Card
Save up to 80% over new with this fully refurbished Cisco VIC3-4FXS/DID voice interface card, backed by Reef Telecom's industry-leading 10-year warranty. Connect analog phones, fax machines, and legacy PBX equipment to your Cisco ISR router with four FXS/DID ports.
Key Specifications
- Part Number: VIC3-4FXS/DID
- Ports: 4 x FXS/DID (RJ-11)
- Card Type: Voice/Fax Interface Card (VIC)
- Form Factor: Plug-in module
- Connectivity: Wired — supports FXS and Direct Inward Dialing (DID)
- Supported Codecs: G.711, G.729a/b
- Minimum IOS: Cisco IOS 12.4(15)XZ
- Condition: Refurbished — fully tested and inspected
Router Compatibility
The VIC3-4FXS/DID is compatible with Cisco Integrated Services Routers including the 2800 series (2801, 2811, 2821, 2851), 2900 series (2911, 2921, 2951), 3800 series (3825, 3845), 3900 series (3925, 3945), and Cisco Unified Communications 500 Series for Small Business. Can be installed in VIC slots on supported routers or in 1- or 2-slot voice network modules.
Ideal Use Cases
Perfect for branch offices and SMBs that need to integrate legacy analog telephones, fax machines, or key systems with Cisco Unified Communications Manager (UCM), SRST, or Cisco Unified Communications Manager Express (UCME). Provides cost-effective analog-to-IP bridging for hybrid telephony deployments.
Free shipping on orders over $300. Every refurbished product from Reef Telecom includes our 10-year warranty and is fully tested before shipment.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

We clean up after ourselves.
Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 81 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.