Cisco ATA 186 Analog Telephone Adapter — Convert Analog Phones to VoIP

Save on your VoIP migration with the Cisco ATA 186 (ATA186). This reliable 2-port analog telephone adapter lets you connect existing analog phones and fax machines directly to your IP network — no need to replace legacy hardware. Backed by Reef Telecom's industry-leading 10-year warranty and professionally refurbished to like-new condition with full functional testing.

Key Specifications

• 2 FXS Voice Ports — Each with an independent phone number (RJ-11)
• 1 Ethernet Port — 10BaseT RJ-45 connection to hub or switch
• Protocol Support — SIP and SCCP for flexible deployment
• VoIP Gateway — Converts analog voice signals to digital IP traffic
• Deployment Options — Works over Ethernet LAN, DSL, cable modem, and fixed wireless
• Compact Design — Small form factor fits any office environment
• Security — Passwords masked as asterisks for enhanced protection

Ideal Use Cases

The Cisco ATA 186 is a cost-effective solution for enterprises connecting analog phones and fax machines to VoIP networks, small offices deploying IP telephony, and service providers rolling out managed voice services. Compatible with Cisco Unified CallManager, CallManager Express, and third-party SIP platforms.

Free shipping on orders over $300. Every refurbished unit from Reef Telecom ships fully tested with our 10-year warranty for total peace of mind.

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.