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The Linksys SPA2102 is a phone adapter with router designed to serve as a ready voice adapter solution for VoIP.

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won't use excessive bandwidth when on a phone call

1 agrees

echo cancellation and jitter buffer work well, creates a clear connection

1 agrees

possible for intermediate level users to set up if you follow the guide and stick to the basic settings

1 agrees

T38 faxing works well, and the redundancy levels can be adjusted

1 agrees
  • Only 3 words are allowed.

can heat up a fair bit, needs to be kept in a well-ventilated area

2 agree

takes a little tweaking to get it sounding as good as it can

1 agrees

need to be a little tech-savvy to configure it

1 agrees
  • Only 3 words are allowed.


The Linksys SPA2102 is a phone adapter with router designed to serve as a ready voice adapter solution for VoIP. Both easy to install and simple-to-use, the SPA2102 connects a standard telephone or fax machine to IP-based data networks. VoIP providers can then deliver residential and business users both traditional and enhanced communication services via the customer’s broadband connection to the Internet. The SPA2102 boasts two POTS (Plain Old Telephone Service) ports for connecting to analog phones, fax machines, or a PBX system. In addition, the SPA2102 also includes 2 100BaseT RJ45 Ethernet interfaces (LAN-WAN). Most notable about the SPA2102 is the fact that it converts voice traffic into data packets for transmission over an IP network. Additional features of the Linksys SPA2102 phone adapter with router include in-service software upgrades, Ironclad security, and top quality voice. The Linksys SPA2102 retails for $79.95 and comes with a 1 year limited warranty.

  • Two voice ports (RJ11) for analog phones or Fax machines
  • Impedance Agnostics - 8 Configurable Settings
  • Call Waiting, Cancel Call Waiting, Call Waiting Caller ID
  • Caller ID with Name/Number (Multi-national Variants)
  • Caller ID Blocking
  • Call Forwarding: No answer, Busy, All
  • Do Not Disturb
  • Call Transfer
  • 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 Number
  • Off-hook Warning Tone
  • Selective/Anonymous Call Rejection
  • Hot line and Warm Line Calling
  • Speed Dialing of 8 Numbers/Addresses
  • Music on Hold
  • Fax: G.711 Pass Through or Real Time Fax over IP via T.38
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