Hi, is there a way in Python/pjsua, to detect if the worker thread is still running? If the worker thread calls a callback, and the callback raises an exception, the worker thread exits, and the main program does not get the exception -- it even doesn't notice that something has gone wrong. The only way I know to check if the worker-thread is still running, is to test if account.info().reg_expires is < 0, but there has to be a better way... thanks, Roland