Hi reading more into the DV malarkey it looks like I should be worried about my mobile signal.
Due to some odd geography our mobile signal is very variable and we are often on wifi calling. It's on three if that helps.
I've read somewhere that if your mobile signal system is not good then if you let BT know they'll provide some other kit.
What is this other kit and how does one get it.
DV has absolutely nothing to do with mobile signal. The only reason that people are worried about lack of mobile signal is in the event of a power cut they will have neither landline or mobile signal.
A UPS, but it is only available to vulnerable customers, not generally.
Edit: Which is confirmed in the post you made which crossed with this one.
Or better ones elsewhere.
have you checked to see if other mobile providers give a better mobile connection than 3 in your area?
@ohforgawdsake2 For emergency calls, any mobile network can be used.