TP21P autoprovision on Elastix 2.4 or 2.5

Hello,

I have a bunch of TP21P and TP22P that I want to configure on an Elastix 2.4 PBX.
The TP22Ps are fine but the TP21P are not on the endpoint configurator.
I tried to choose both TP22 and TP20 as the phone model but the phones do not react.

Is there a way to add TP21P to Elastix endpoint configurator?


Thanks for your help.