Error 0x8004005A

Value: -2147221414 | 0x8004005A | 2147745882

What does it mean ?

TAPI_E_SERVICE_NOT_RUNNING  
The Telephony Service could not be contacted.
Value: 90 | 0x005A | 0b0000000001011010

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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