Product Id: 24822630
Description: Fortinet FortiFone 50e - Interface expansion module - for FortiFone 450i, 550i
Mfr Part #: FF-50EThe expansion module for the FON-450i/FON-550i phone provides 12 additional line/programmable feature keys. You can place the phone and expansion module on your desktop or you can wall-mount them.
Up to two expansion modules are supported on a single phone. The expansion modules work with the FON-450i and FON-550i phones.