My 3CX application just stop working. I experienced this everyday during the last three days. I checked the event viewer and found this error message: Faulting application name: 3CXPhoneSystem.exe, version: 12.0.33463.0, time stamp: 0x528e028c Faulting module name: 3CXPhoneSystem.exe, version: 12.0.33463.0, time stamp: 0x528e028c Exception code: 0x40000015 Fault offset: 0x00000000002c7091 Faulting process id: 0x794 Faulting application start time: 0x01cf336e0d3c71e6 Faulting application path: C:\Program Files\3CX PhoneSystem\Bin\3CXPhoneSystem.exe Faulting module path: C:\Program Files\3CX PhoneSystem\Bin\3CXPhoneSystem.exe Report Id: 51953df5-a022-11e3-80cd-00155d01080a Faulting package full name: Faulting package-relative application ID: Once I ran out of outgoing trunks, this message will appear after 2 1/2 hours. Then it will stop the 3CX application. I'm about to upgrade my outgoing lines tomorrow from 5 to 10 but is that supposed to happen?! Also, in my SIP trunks configuration I've set the maximum simultaneous calls to 5. I need to restart all services to fix the issue.