UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Plugging in extension causes main to ring

Ken Taylor · 25th Feb 2021, 12:43 pm

Not particularly a vintage phone question but maybe some of you experts could help me. BT Openreach have just been and installed a new master socket (NTE5?). I asked them to reconnect the cable to the extension upstairs but when I plugged in my 706 and lifted the handset, it caused the downstairs phone to ring continuously - not just tinkle. I replaced the 706 with a modern Scepter 100 (OK, relatively modern) and it did the same. Placing an ADSL filter in front of the phone made no difference. Any idea what's happening here before I get BT back?

Thanks Ken

25th Feb 2021, 12:43 pm	#1
Ken Taylor Pentode Join Date: Dec 2015 Location: Abingdon on Thames, Oxon, UK. Posts: 116	Plugging in extension causes main to ring Not particularly a vintage phone question but maybe some of you experts could help me. BT Openreach have just been and installed a new master socket (NTE5?). I asked them to reconnect the cable to the extension upstairs but when I plugged in my 706 and lifted the handset, it caused the downstairs phone to ring continuously - not just tinkle. I replaced the 706 with a modern Scepter 100 (OK, relatively modern) and it did the same. Placing an ADSL filter in front of the phone made no difference. Any idea what's happening here before I get BT back? Thanks Ken