Error 0x80EE0067

Value: -2131885977 | 0x80EE0067 | 2163081319

What does it mean ?

RTC_E_SIP_TCP_FAIL  
Fails to make a TCP connection
Value: 103 | 0x0067 | 0b0000000001100111

Where does it come from ?

FACILITY_RTC_INTERFACE  
RTC - Real-time Communications
Value: 238 | 0x0EE | 0b11101110

Other Errors for FACILITY_RTC_INTERFACE