Hi, I have some issues with my phone/internet and I'm not very familiar with the hardware involved. In my living room I have a square socket built in to the wall. Going into there I have a splitter which directs one side to my landline telephone and one to my router/modem. The connection going into the socket has always been quite loose, requiring a massive wooden speaker to hold the cable in tight enough for it to get a connection. Recently we can't get a connection unless you push in the cable with all your strength (wooden speaker no longer works). I have moved the phone and hub upstairs just so I can get internet back but it is an unsuitable place for other residents to actually access the phone. I would like to replace the faulty socket but I'm not sure what type I need as they all look the same. I have attached a picture. It has been in the house for over 20 years so I don't know if they have changed much since those times. Any help is much appreciated. Thanks for reading.
View: https://imgur.com/a/mBOH3qa
View: https://imgur.com/a/mBOH3qa