Unable to create ActiveX control.
CmxPhone Control
(Class Id: {65BAD22A-2CC8-11D3-83D3-00104BDACB3A})
Is not found on the system, please check if the control is correctly installed.

Ensuite, le message suivant apparaît :
Warning:
Unable to call method on ActiveX, wait until object is fully initialised.
Pour corriger le problème, il suffit d'enregistrer la dll smmPhone.ocx :
regsvr32 "C:\Program Files\Microsoft Dynamics AX\40\Client\smmPhone.ocx"