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All new Linksys SPA2100 Dual FXS SIP Adapter. Upgrade from SPA2000 adding a second Ethernet (RJ45) port and additional feautures.

Inexpensive, easy-to-install and simple-to-use, the Linksys SPA2100 connects standard telephones and fax machines to IP-based data networks. IP telephony service providers and enterprise users can offer traditional and enhanced communication services via the customers' broadband connection to the Internet or Local Area Network (LAN)

The SPA2100 features two POTS (Plain Old Telephone Service) ports for connection to existing analog telephones. The SPA2100 includes an Ethernet interface for connecting to a home or office PC (LAN) as well as an Ethernet connection to the broadband modem or router (WAN). Each SPA-2100 service line can be independently configured via software controlled by the service provider and/or the end user.

With the SPA2100, individuals and companies are able to protect and extend their past investments in telephones, conference speakerphones, and fax machines as well as control their migration to IP with an extremely affordable, incremental investment.

Linksys SPA2100 Key Features

  • Terminating Impedance Agnostic - 8 Settings
  • Call Waiting, Cancel Call Waiting
  • Caller ID with Name / Number
  • Caller ID Blocking
  • Call Waiting Caller ID with Name / Number
  • Call Forwarding: No Answer / Busy / All
  • Do Not Disturb
  • Call Transfer (Blind and Consultative)
  • Three-Way Conference Calling with Local Mixing
  • Message Waiting Indication - Visual and Tone Based
  • Call Return
  • Call Back on Busy
  • Call Blocking with Toll Restriction
  • Delayed Disconnect
  • Distinctive Ringing - Calling and Called Numbers
  • Off-Hook Warning Tone
  • Selective / Anonymous Call Rejection
  • Hot Line and Warm Line Calling
  • Speed Dialing of 8 Numbers
  • Music on Hold
  • Fax - G.711 Pass-Through or Real Time Fax over IP via T.38 (Pending)