When installing a new FF-65B Bluetooth module on a FortiFone 460i or FortiFone 560i, it is very common to notice that the module is not being detected by the FortiFone even when it seems to be properly installed and the module's led has been turned on.
There are two items that must be checked in order to make this new Bluetooth module work as expected:
1) Upgrade the firmware of the FortiFone 460i/560i to the latest version. IP phone firmware can be downloaded from:
2) There is a deep switch on the back side of the FF-65B module that is not described in the installation guide. This switch must be turned from "L" to "S"