The J100 Wireless Module is an optional plug-in hardware module. It provides WLAN connectivity for the J129 IP Phone and WLAN/Bluetooth®i connectivity for the J179 IP Phone. Support for WLAN requires J100 2.0.0 software. Support for Bluetooth® requires J100 4.0.0 software.
For those wanting a J129 or J179 as a Wireless phone. Excellent for common areas without cabling or for areas where cabling is difficult or not possible.