Error 0x80040027

Value: -2147221465 | 0x80040027 | 2147745831

What does it mean ?

TAPI_E_TARGETSELF  
No higher priority target exists for the call handoff.
Value: 39 | 0x0027 | 0b0000000000100111

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

Other Errors for FACILITY_ITF