We support remotely and on-site several SX 200 systems for a large customer. When we do MACDs (Move, Add, Change, and Disconnect) on these and other PBX systems we maintain, we have to do a Database Backup. And since were are in Ohio, and these systems are all over the country, we often have to do it via dial-up modem using HyperTerm, when the systems are not on the users' network(s). On a few of the SX 200 EL systems the backups fail during communication with a FILE ABORT #0? or a FILE ABORT #5? error message. I am unable to find any explanation reference to this message, for either Mitel SX 200 or HyperTerm, anywhere on the internet. Anyone have an explanation of what is happening?