Cisco VIC2-4FXO=

Overview

The Cisco VIC2-4FXO= is a four-port FXO voice and fax network module designed to integrate standard analog phone lines into a Cisco IP telephony environment. It enables smooth communication between traditional public switched telephone network (PSTN) lines or legacy PBX extensions and IP-based systems when installed in compatible Cisco voice gateway routers. This module supports essential telephony functions such as dial tone, ring voltage, and caller ID, ensuring analog devices like fax machines and alarm panels continue to operate reliably within modern networks.

Key features

• Four FXO ports that connect analog voice or fax lines to IP telephony systems, maintaining compatibility with existing infrastructure.
• Standard RJ 11 connectors simplify installation by using familiar telephone wiring, reducing setup time and complexity.
• Universal configuration options allow administrators to select impedance and country settings via software, making the module adaptable to various regulatory environments worldwide.
• Caller ID support and battery reversal detection improve call control and reliability by accurately recognizing call signaling and status.
• Designed for use with multiple Cisco router series, enabling a single hardware platform to handle voice, data, and security needs at branch offices or customer premises.
• High reliability with a mean time between failures (MTBF) of over 1.2 million hours, ensuring long-term stable operation.

Key specs

• Ports: 4 FXO analog voice/fax ports
• Connector type: RJ 11 standard telephone interface
• Compatible routers: Cisco 2600XM, 2691, 3640, 3660, and 3700 series
• Configuration: Software-selectable impedance and country settings
• Features: Caller ID support, battery reversal detection
• Mean time between failures (MTBF): 1,245,152 hours

Connectivity and compatibility

This module integrates seamlessly with Cisco voice gateway routers, allowing organizations to connect analog PSTN lines or legacy PBX extensions to their IP telephony networks. The use of RJ 11 connectors means technicians can use existing telephone cabling without additional adapters or complex rewiring. Its universal configuration supports compliance with telephony standards in most countries, making it suitable for global deployments.

Ideal uses and environments

The VIC2-4FXO= is well suited for businesses that maintain a small number of analog lines as a backup when IP connectivity is unavailable or for those that need to support legacy devices such as fax machines, alarm systems, or elevator phones that rely on traditional phone lines. Service providers can also leverage this module to offer hosted voice services while preserving local breakout capabilities for emergency calls. It fits well in branch offices or customer premises where voice, data, and security functions are consolidated on a single Cisco router platform.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

Learn more

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more