I think you’re asking about the capability of BLF keys during the phone’s transfer state. In that case, you’ll be interested in the “transfer” option for the “press_function” option for a BLF Item behavior when the phone is in the transfer state, or perhaps the sum of the states listed in this example:
The behavior of the BLF keys w.r.t. dialing or transferring is controlled by the press_function. Modify FreePBX and/or EPM to allow that, and Bob’s your uncle (an expression, not a literal).
It applies to the individual behavior of the individual BLF item, please see the docs I linked, so it’s whatever’s generating the BLF items file in EPM/FreePBX.
So I used Endpoint Manager to create the BLF keys. This is what it looks like below. How do I change it? Sorry if i’m missing something obvious. Just started to use the Digium series instead of Sangoma’s.
That’s (in that UI) where someone might add additional EPM functionality in order to control what’s being written to the BLF Items file that could determine the press_function behavior or other options for the individual BLF item