Hi have installed the BT Cloud phone App on to date 5 different Android phones - the last running Android 7 - On every phone the app fails to repsond to an incoming call when in sleep mode - you will not know that there is an incoming call.
I have now purchased a new Iphone 6s to replace my Iphone 5 which has been running the Iphone BT Cloud app for over 17 months without any problem. However on the iphone 6s the BT Cloud Phone App will not work - it will only work when the app screen is activate. I have contacted support who are aware of this issue - how long they have been aware I don't know. So at present it would appear that BT are adverising a product that they clearly understand and know does not work - I look forward to hearing from BT on an update as to when we can expect to get the service we pay each month for.