Both our ISP and the phone company charged for every BRI data "call" placed and for minutes connected rather than a flat rate on a business-class ISDN line. I d

Both our ISP and the phone company charged for every BRI data "call" placed and for minutes connected rather than a flat rate on a business-class ISDN line. I discovered IBM AIX's web browser package contained a telemetry background process that dialed home to Big Blue every 2 hours, causing our Cisco 1604 router to dial-on-demand even when no one was in the office. A simple deny IP ACL fixed that problem. There was no opt-out and no mention of it, and it never became a story that it should've been.