VIC3-4FXS/DID

The VIC3-4FXS/DID is a Cisco 4-port voice interface card designed to connect analog devices such as telephones, fax machines, or modems to a digital IP network. This card is often found in enterprise branch offices or small to medium businesses that need to integrate traditional phone lines with modern voice over IP (VoIP) systems.

Built for use with Cisco routers, it supports multiple simultaneous voice channels and allows for direct inward dialing, which simplifies managing multiple incoming lines. Network administrators and IT professionals typically use this card to expand telephony capabilities without replacing existing analog equipment.

Key Features

• Provides four FXS ports for connecting analog voice endpoints
• Facilitates Direct Inward Dialing for individual line access
• Compatible with a range of Cisco routers for seamless integration
• Supports fax and modem transmissions over IP networks
• Offers reliable voice quality and network scalability

This card is commonly deployed in office environments where legacy analog devices are still in use alongside VoIP infrastructure. It helps organizations maintain their current telephony hardware while gaining the benefits of digital communication and centralized management.