Error 0x80F00009

Value: -2131754999 | 0x80F00009 | 2163212297

What does it mean ?

RTC_E_PINT_STATUS_REJECTED_SW_FAILED  
Switch Failed
Value: 9 | 0x0009 | 0b0000000000001001

Where does it come from ?

FACILITY_PINT_STATUS_CODE  
PINT - PSTN/Internet Interworking (VoIP)
Value: 240 | 0x0F0 | 0b11110000

Other Errors for FACILITY_PINT_STATUS_CODE