Any clues on how to set up Do Not Disturb overnight from 22:00 to 07:00?
Unless I am missing something you can only key in one time range!
I'd never even heard of Do Not Disturb https://www.bt.com/help/landline/calling-features-and-security/bt-call-protect----how-to-----guide#d...
Searching the forums there's other people asking the exact same question -with no answers- so hopefully someone can help. Have you tried a different browser?
I have the facilty of DND built into my olde Panasonic telephones which is why I've had to keep them but I don't fancy paying extra with the BT service (I have the basic Call Protect which is free).