Used & Refurbished Avaya 8403 Phones

When you buy refurbished Avaya 8403 phones online from Black Box Resale you receive the perfect device for the basic office phone user.


  • 3 programmable call appearance/feature buttons
  • 8 fixed feature buttons
  • Listen-only speakerphone

System Requirements/Compatibility:

  • 2-wire TN2181 16-ports circuit card for DEFINITY G3V2 Systems and higher
  • 2-wire TN2224 24-ports circuit card for DEFINITY Release 5.0 and higher
  • 4-wire TN754C circuit card for System 75 and earlier DEFINITY communications systems

Product shown in Black.

Product Options
Condition SKU Description Stock Price Quantity
Refurbished XLDEF8403B LU DEF 8403 BLK Get Quote
Refurbished XLDEF8403W LU DEF 8403 WH Get Quote