Please note that, ‘your call is being recorded and can be used for our quality improvement process.’ You must be aware about the world famous automated dialogue you get to here, when you call or communicate with any Customer Support Executive. Another world famous dialogue from very popular T.V serial CID has made call tracking or call monitoring very popular. https://nimmansocial.com/story8416469/how-to-listen-to-someone-s-cell-phone-calls-without-them-knowing