J1xx-series IP telephones

Last Updated : Sep 29, 2026 |
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The J1xx-series IP telephone product line possesses a number of shared model features and capabilities. All models feature:
  • Downloadable firmware
  • Automatic IP address resolution through DHCP
  • Manual IP address programming.
The J1xx-series IP telephone product line includes the following telephones:
  • Avaya J129 IP telephone
  • Avaya J139 IP telephone
  • Avaya J159 IP telephone
  • Avaya J179 IP telephone
  • Avaya J189 IP telephone
Support for SIP-enabled applications can be added to several of these IP telephones through a model-specific firmware update. See the Avaya Firmware Download website for more information.
Related links
Avaya IP telephones