Ich glaube dieser log sagt mehr:
11:49:40,933: Status: disconnected
11:49:40,933: Status: 487:Cancelled
11:49:40,933: active call index=0
11:49:40,933: Disconnect Response
11:53:02,327: Device is still open
11:53:02,343: lineNegotiateEXTVersion() failed: 0x8000000D
11:53:02,343: lineNegotiateEXTVersion() failed: 0x8000000D
11:53:02,343: phoneNegotiateEXTVersion() failed: 0x90000004
11:53:02,358: Status: disconnected
11:53:02,358: Facility Request (Supplementary Services: Forward - Interrogate Numbers)
11:53:02,468: Facility Confirm (Supplementary Services): CF Interrogate Numbers -> success
11:53:02,468: Facility Indication (Supplementary Services): CF Interrogate Numbers
11:53:02,468:
11:53:02,468: Facility Response