Error 0x80EF019D

Value: -2131820131 | 0x80EF019D | 2163147165

What does it mean ?

RTC_E_STATUS_CLIENT_REQUEST_ENTITY_TOO_LARGE  
Request Entity Too Large
Value: 413 | 0x019D | 0b0000000110011101

Where does it come from ?

FACILITY_SIP_STATUS_CODE  
SIP - Session Initiation Protocol (VoIP)
Value: 239 | 0x0EF | 0b11101111

Other Errors for FACILITY_SIP_STATUS_CODE