You are bidding on a Refurbished Avaya Definity TN556D V1 ISDN-BRI 4-Wire S/T-NT 12-Port Interface, (SEE PHOTOS).

More Information
  • Provides 12-Ports connecting to ISDN-BRI terminals
  • Each port has TXT, TXR, PXT, and PXR signal leads
  • Up to 8 ports can be used for adjunct switch application interface (ASAI) links
  • Each port operates at 192 kbps per second and has 2 B-channels and 1 D-channel
  • Requires a packet control circuit pack (TN778) when used in R6si systems or packet bus-equipped R6vs systems
  • Range of up to 3300 ft. maximum from the system to the voice terminal
  • Can connect 24 terminals where each terminal uses 1 B-channel and shares the D-channel
  • Compatible with Definity R7 or later

Winning bidder to pay $9.95(U.S) for shipping and handling (to the lower 48-states). 

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Please note that returns are not accepted on international orders (Global Shipping).

If you have any questions please contact us and we will be more than happy to answer any questions.