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ATA187-I1-A

The Cisco ATA187-I1-A is a compact, reliable analog telephone adapter designed to connect legacy analog devices to modern VoIP networks, featuring a single FXS port and support for advanced voice protocols—ideal for cost-effective, small-scale deployments.

SKU: ATA187-I1-A Brand: Product ID: 325762
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Description

The Cisco ATA187-I1-A is a reliable analog telephone adapter designed to connect standard analog devices such as phones and fax machines to a VoIP network. Housed in a compact, durable casing, it features a single RJ-11 FXS port and one RJ-45 Ethernet port, making it ideal for small office or remote work environments where legacy equipment needs to integrate with IP-based systems. This model supports SIP protocol for seamless communication with Cisco Unified Communications platforms and other SIP-based systems. Its LED indicators provide clear status updates for power, network connectivity, and line activity.

Under the hood, the ATA187-I1-A supports voice codecs including G.711, G.729, and G.726, ensuring high-quality audio transmission across IP networks. It includes support for T.38 fax relay and features secure voice signaling with SRTP and TLS protocols. The unit is powered via an external AC adapter and supports DHCP for easy network configuration. Ideal for buyers seeking dependable used network hardware, the ATA187-I1-A offers a cost-effective solution for bridging analog devices with modern VoIP infrastructure.

Who We Are
 
ROC Telecom is a family-owned, Texas-based company specializing in helping businesses unlock value from their networking and telecom equipment. From routers and switches to optical gear and more, we provide a seamless solution for businesses looking to sell, recover assets responsibly, or buy quality-tested equipment at competitive prices.
 
What We Do
 
We make it easy to:
  • Sell Used Equipment: Get a quick, hassle-free quote and maximize the value of your old IT gear.
  • Buy Certified Networking Equipment: Access affordable, quality-tested equipment from top brands like Cisco, Juniper, Ciena, Fujitsu, Infinera and more.
Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
  • Sustainable IT Solutions: Reduce waste and support environmentally responsible practices.
  • Competitive Pricing: Fair, fast, and accurate valuations for all your equipment.
  • Free Shipping Logistics: Fast, secure, and hassle-free shipping or pickup options for buyers and sellers.
Our Process
  1. Submit a Request: You can use the “Buy” or “Sell” buttons above to get started — or fill out a form, call us at 585-406-1248, or email bailey@roctelecom.com. Whatever’s easiest for you, we’ll make it quick and hassle-free.
  2. Quick Evaluation: We’ll assess your equipment—whether you’re looking to sell it or find the right gear for your needs—and provide a fair offer.
  3. Simple Logistics: Fast, secure, and straightforward shipping or pickup solutions.
  4. Value Delivered: Recover funds from unused equipment or save on quality-tested networking and telecom gear.
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