A few days ago my ONT backup battery quit and I had to replace it. At the bottom of the instruction sheet, as part of the copyright blurb, it says in fine print: "Battery backup for standard fiber-based voice service & E911 (but not VOIP) for up to 8 hours." I have Verizon digital voice, which I understand is VoIP. If so, does the battery backup actually do anything? My router is attached to the battery backup I have for my computers. So, if my router is still functioning because of my personal battery backup, will my phone service and Internet service continue until either my personal battery backup or my ONT battery backup quits? If not, what is the purpose of the ONT battery backup with Verizon digital voice?
