This guide covers using the J100 Series telephones on IP Office telephone systems (except the J129 which has its own separate documentation).

These phones are supported on a number of Avaya telephone systems and support different features depending on the telephone system. This guide covers only the features supported on an IP Office telephone system.

If this is not the correct guide that you need, see Additional Documentation.

1. On phones which support button modules, the number of buttons supported can be increased by the addition of modules.