Monday 24th April 2015 08:30 AM be notified of the problem from the SMBC that system has to send mail notification message (SNMP) alert that deleting audio files, the Engineer of CTC had Onsite immediately to check for problems. Alert system and found that the audio file storage on the server is full. IMR system was delete oldest audio files to ensure the system is only for the current file (storage space is based on principles FIFO or First in First. Out).