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Avaya TN776 Expansion Interface Board Refurbished

Item #: TN776

Definity Expansion Interface for Release 6 and earlier systems.

Avaya TN776 Expansion Interface Board Features:
  • Allows for TSI between cabinets
  • Systems with PRI or BRI require a TN570B or TN570C instead
  • Systems R7si and higher also require the TN570B or TN570C
  • Fully Refurbished
  • Item #: TN776

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