Respectfully it’s not a similar problem at all , seemingly the OP could have a problem free service simply by removing the DV adapter from their setup and rely on a wired phone connected directly to the hub , presumably that arrangement isn’t convenient they want the phone located in a different place to the router …..your problem ( indicated on your own post ) states you have a problem regardless of the phone being connected to DV adapter or connected to the hub directly you made this point specifically even though you are now walking that comment back somewhat , if your own post had said calls were fine with the phone connected directly to the hub the advice given would have been completely different to what you were given .
If it is the DV adapter causing the problem , it’s worth having in mind that other companies like Sky and Vodafone for example (and others ) do not provide anything like this when they move their customers onto their version of ‘digital voice’ , they just say connect your phone to the hub directly, that’s it , no other assistance , in my opinion BT have made a rod for their own backs by providing DV adapter equipment for free that if it’s isn’t ‘perfect’ for the customer usage, it gets complained about , but BT get no credit for supplying it in the first place , perhaps BT should just do what others do and say connect your phone to the router and say to customers who do have a DV adapter , don’t use it if it’s not up to scratch, it not like it cost you anything
