log messages:
09/09/2014 15:49:49.453 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 0, 0
09/09/2014 15:49:51.323 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:49:51.768 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:49:52.752 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:49:57.630 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:49:57.642 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:50:05.752 com.apple.SecurityServer[15]: Killing auth hosts
09/09/2014 15:50:05.752 com.apple.SecurityServer[15]: Session 100051 destroyed
09/09/2014 15:50:09.558 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:23.378 xpcproxy[1007]: assertion failed: 13E28: xpcproxy + 3438 [D559FC96-E6B1-363A-B850-C7AC9734F210]: 0x2
09/09/2014 15:51:24.371 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:24.626 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:29.762 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:46.745 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:46.759 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0
09/09/2014 15:51:48.913 FaceTime[996]: Retrieving server bag 1, 0x60000001e990, 1, 0