Hi i have not had my meters changed to smets2 yet…but I fit the smart electric meters with ihd for another company.
…I can tell you that the bleeping sound you get is basically after a week or so the device works out what your average useage is…if you go over the top of your average the ihd will bleep to let you know you have used over your average …
Press home icon then ok then forward arrow twice then press ok.Press forward arrow til you get key tones .Press ok. It says key tones on/off press forward arrow to turn volume off.