First post here. I’ve recently discovered that calls to my landline aren’t getting through. If you try to call the landline you hear it rings once then makes a high pitched noise like you are dialling a fax machine. If you answer the home phone then the call is connected but I’ve only discovered this through trial and error and calling the landline from my mobile. The home phone will ring once and stop. now that I think about it this must have been going on for a while as we used to get spam calls all the time and it seems like we haven’t had any calls for ages. If anyone has any idea what’s going on then any help would he appreciated.