Product Description
Cisco VIC3-4FXS/DID 4-Port Voice Interface Card
The Cisco VIC3-4FXS/DID is a four-port Voice Interface Card designed for compatible Cisco voice-enabled routers and business communication environments. It provides FXS and DID functionality for integrating analog voice services with Cisco voice and VoIP infrastructure.
The card can be used to connect compatible analog telephones, fax machines and key systems through its FXS interfaces. Its DID capability can provide incoming Direct Inward Dialing connectivity from the central office or PSTN. Cisco documentation identifies the VIC3-4FXS/DID as a four-port FXS/DID voice/fax interface card.
Cisco VIC3-4FXS/DID Key Features
The Cisco VIC3-4FXS/DID provides:
- FXS and DID functionality
- Analog voice and fax support
- Connectivity for compatible analog telephones
- Support for compatible fax machines
- Connection to compatible key systems
- DID connectivity for incoming PSTN calls
- RJ-11 telephone connections
- Cisco voice gateway applications
- Designed for supported Cisco routers
Cisco VIC3-4FXS/DID FXS Connectivity
The FXS side of the voice interface can be used to connect compatible analog equipment.
Typical applications include:
- Analog telephones
- Fax machines
- Key systems
- Business voice equipment
- Analog extensions
- Cisco voice gateway installations
Cisco specifies RJ-11 connections for these voice interfaces.
Cisco VIC3 card for Business VoIP
The card can be useful in business environments where analog voice equipment or telephone services need to integrate with a compatible Cisco voice infrastructure.
Potential applications include:
- Business telephone systems
- Cisco voice gateway deployments
- Analog telephone extensions
- Fax connectivity
- DID services
- Branch-office voice systems
- Hybrid analog and IP telephony environments
- Cisco Unified Communications installations





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