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Sangoma DPMA phones (formerly branded as Digium, and includes the D series and P series devices) rely on the res_digium_phone Asterisk module for full phone functionality.
As mentioned in EPM-Digium Phones , We have the following ways to provision Sangoma's DXX/PXXX series phones:
Endpoint Manager - EPM-DPMA for Digium Phones
FreePBX Digium Phone Module - Digium Phones Module (Deprecated). Please note that this module is not supported on PBXAct.
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