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Cisco ATA 187 ATA187-I1-A Analog Phone Adaptor Unlocked

Cisco ATA 187 ATA187-I1-A Analog Phone Adaptor Unlocked

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Cutoff Ground / 3 day / 2 day - 2pm PT, Cutoff Overnight - 5pm PT. Overnight orders after 4pm PT require approval. Call 800-430-6950 to confirm overnight orders after 4pm PT.
Condition: Seller refurbished
Pre-owned, tested by qualified techs, working, reset-to-factory default, grade A condition, and parts needed for normal functions are included (as described in the listing).
Warranty: 365 days
Warranty coverage period
SKU: NSH-1424
UPC: 882658351037


ATA187-I1-A Analog Phone Adapter is a versatile and unlocked device that connects traditional analog phones, fax machines, or conferencing equipment to Voice over IP (VoIP) networks. This compact yet powerful adapter supports two voice ports.

Its features include caller ID, call waiting, three-way conference calling, and more. This ATA provides seamless integration into existing communication systems, equipped with industry-standard SIP protocols and interoperability capabilities across multiple platforms, including Cisco Unified Communications Manager Express (CME). Its unlocked nature ensures compatibility with various service providers without restriction.

With robust security measures like Transport Layer Security (TLS), Secure Real-Time Protocol (SRTP), and encryption algorithms implemented in the hardware design of this adaptor model, confidentiality during calls is ensured.


  • Analog Phone Ports : Two voice ports support legacy (analog) touch tone telephones
  • LAN Port : RJ 45 connection to 10BaseT Ethernet hub or switch
  • Power : AC adapter - Included
  • : Web configuration through built-in Web server
  • : SIP only
  • : Automatic assignment of IP address, network route IP, and subnet mask via Dynamic Host Configuration Protocol (DHCP)
  • : Auto-provisioning with Trivial File Transfer Protocol (TFTP) provisioning servers
  • Model Number : ATA187-I1-A
  • Part Number : ATA187-I1-A, ATA187-I1-A=, ATA187-I1-A-WS
  • Condition : Seller refurbished


  • One (1) Seller Refurbished Cisco ATA187-I1-A ATA 187 Analog Unlocked Phone Gateway as described above
  • One (1) Power Adapter Included

Not Included

  • Manuals or product brochures are not included. Software or Firmware DVDs or CDs are not included
    Product information and installation instructions may be found on the manufacturer's website or the web. Software or firmware updates may be available through the manufacturer's website