I have multiple customers with Samsung OS 7100 and Other 7000 series pbxs. Some of the customers have repeatedly had their SVMi just shut down for no reason I know of. They will call, saying that when the MSG button is pressed, that the calls are routed to the Reception Ext (normal I place Ext 201, at reception incase of Default, so that the individual most used to answering the phone will continue to do so until I can reprogram pbx). This is following the programming in MMC 745 Warning Dest for SVMi. I have fixed it sometimes by simply power cycling the pbx (SVMi starts working for a time after reboot). Most times this does not allow it to work but for a short amount of time. Most times I end up taking the SD card out & cutting the old software package off & placing a Fresh Copy on them. Most times this seems to clear the issue up. I have been telling the customers that I think it was “corruption of the database” due to either Power Network “Brown Outs” (lower than normal 120VAC, somewhere in the 90VAC range) or “Power Flicker” (if you see the light fixture almost turn off but suddenly return to full brightness), either of case the PBXs might start powering down, only to start right back up & cause the Bootup file to start, only to have it stop partway thru to restart again (causing corruption of database). The systems I have had the most issues with, I recommend a UPS Battery backup to prevent and most times this seems to stop the issue. Now that SAMSUNG Tech is GONE! I can not ask for advice from them or have no way to contact Saul Friedman, I took a CADENCE Certification class over 20+ years ago that he taught, he knew his stuff about SAMSUNG Equipment. Last I knew of he had worked with SOTEL System in 2018 or so. He may know exactly what might prevent this from occurring. If anyone has any ideas on what might be a better solution, please respond or PM me on the subject. I know a few of the customers are getting “irritated” with this repeatedly reoccurring. Trying to provide good CS to them and prevent losing them as a customer. Thank you for your help.