I installed our first digital voice adapter several months ago and it works fine. When BT finally received in additional DVA stock, I purchased a second DVA to be used in another room of the house. I paired the device to the hub without any issues. However, when I lift the receiver I can hear the dial tone but there is significant line interference. I switched my original DVA with the new DVA and there was no interference on the line. I have tried several different permutations of connections and in each case the new DVA has a dial tone but also line interference; the original DVA has a clear dial tone. I have reached the conclusion that the second DVA has a fault and plan to return it to the BT Shop unless someone had a similar problem and can help me fix it.
Many thanks!
