Error 0x8004000C

Value: -2147221492 | 0x8004000C | 2147745804

What does it mean ?

OLE_E_PROMPTSAVECANCELLED  
User canceled out of save dialog
Value: 12 | 0x000C | 0b0000000000001100
TAPI_E_INVALADDRESS  
The phone number is invalid or not properly formatted.
Value: 12 | 0x000C | 0b0000000000001100

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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