The J1xx-series IP telephone product line possesses a number of shared model features and capabilities. All models feature:
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.