Cisco VIC3‑4FXS/DID 4‑Port FXS/DID Voice Interface Card
Model Name : VIC3-4FXS
Brand : Cisco
Key Features:
- 4 Analog Ports configurable as FXS or DID
- Connects analog phones, fax machines, or PSTN trunk lines
- Supports loop-start signaling and DID (Direct Inward Dialing)
- Battery reversal and caller ID (FXS mode)
- Compatible with Cisco ISR routers: 2800, 2900, 3800, 3900 series
- RJ-11 connectors with LED port indicators
- Supports Fax over IP using fax relay and pass-through
- Requires onboard PVDM DSP module for echo cancellation and fax support
30 days Warranty
Condition : Refurbished
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- Description
- Specification
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Cisco VIC3-4FXS/DID is a 4-port high-density analog voice interface card that supports both Foreign Exchange Station (FXS) and Direct Inward Dialing (DID) functionality.
It enables Cisco ISR routers to connect directly to analog phones, fax machines, modems, or PSTN DID trunks, making it ideal for small-to-medium businesses integrating legacy telephony with VoIP systems.
Designed for Cisco 2800, 2900, 3800, and 3900 series routers, this module provides reliable voice and fax capabilities in both telephony and hybrid voice/data deployments.
Frequently Asked Questions (FAQ)
Q1: What is the difference between FXS and DID?
A: FXS ports connect analog endpoints (like phones and fax), while DID ports are used for receiving calls from the PSTN directly to internal extensions.
Q2: What routers are compatible with this module?
A: Supported on Cisco ISR platforms like 2811, 2821, 2851, 2911, 2921, 2951, 3825, 3845, and similar routers with voice support.
Q3: Can this module support fax machines?
A: Yes, with appropriate DSP modules, it supports fax relay and fax pass-through modes.
Q4: Does it support caller ID?
A: Yes, caller ID is supported in FXS mode.
Q5: Can I mix FXS and DID ports on a single card?
A: Yes, ports can be individually configured as either FXS or DID.
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