acejavelin, The reason I'm asking is that I believe, my system was hacked and multiple international calls were made from it I check the DISA setting to see if it was used to hack the system but it's not enabled. what got my attention is on one of the extension's voicemail box settings "Operator Extension (0)" field was changed to the international number that was called from my system but im still not sure how could the hacker change it and how did he use it to place the calls, any idea?