Line fault VDSL

Do any of the BT bods on here know what kind of fault I have. When making a phone call the router drops connection and SNR drops through the floor. When someone is ringing in the are connected for 2 seconds and hear hissing then the call is dropped my phone doesn't even ring. Any ideas?

Hmm, HR dis, rectified loop, maybe a combination of the two ? Battery fault ? Some crappiness on the line somewhere.

Try a different filter (unlikely, but good to rule out) then report it via your service provider.

In reply to a post by Banger:

Any ideas?

Only questions.

Analog phone connected to the incoming line? [Rather than phone connected to a phone port on the router?]

Has it ever worked? Or is this a new problem?

Does it correlate to any work you have done to the phone system?

Any changes to sync speed correlated to when this problem arose?

Damn has upset DLM gone up to 4.1db now. Thought it was the phone connected to the filter but pulling that doesn't seem to make any diff. Phone connected to filter crackles and doesn't disconnect when handset placed down as a weird siren noise can be heard but incoming still disconnects after 2 secs from mobile. Will be monday before I can report to TTB.

In reply to a post by DFScale:

In reply to a post by Banger:

Any ideas?

Only questions.

Analog phone connected to the incoming line? [Rather than phone connected to a phone port on the router?]

Has it ever worked? Or is this a new problem?

Does it correlate to any work you have done to the phone system?

Any changes to sync speed correlated to when this problem arose?

Analog as in VDSL

New problem always worked.

Sync speed reduced as DLM has kicked in.

Yeah, gonna go with a battery fault somewhere.

Is there a way to have your voice provider run a remote line test ? If that fails, they can raise a fault ….. access ought need to be needed . Why wait, get the ball rolling.

Talk Talk Biz tech isn't open til Monday so can't get ball rolling. Just phoned auntie and it seems ok no DSL drops just seems to be incoming. Was telling her wasn't me being rude its a fault as its her birthday tomorrow.

Edit: TTB tech chat has changed its hours seems its open on weekends so will contact them tomorrow.

Edited by Banger (Sat 25-Jan-25 21:21:28)

Well I have removed the 5c faceplate disconnecting all the extensions and plugged a phone into the test socket and used my mobile to ring the landline and it just cuts off after 2 seconds and the phone doesn't ring. Same with no phone connected to the test socket so I would reckon a line fault somewhere.

IIRC plugging a phone into the test socket is something that is never going to work.

The filter in the faceplate or in any other filtered faceplate or a plug-in filter simply removes the broadband frequencies from the phone supply. The VDSL socket is unfiltered as the router ignores any frequencies outside the ones it expects. This is why Zarjaz suggested trying a different filter.

If you still have a plugin-in one, plug that into the test socket. Then your phone into its phone socket.

Though he is probably right about a battery fault at the OR end.

Edited by pluralist (Sun 26-Jan-25 00:56:03)

In reply to a post by pluralist:

IIRC plugging a phone into the test socket is something that is never going to work.

The filter in the faceplate or in any other filtered faceplate or a plug-in filter simply removes the broadband frequencies from the phone supply. The VDSL socket is unfiltered as the router ignores any frequencies outside the ones it expects. This is why Zarjaz suggested trying a different filter.

If you still have a plugin-in one, plug that into the test socket. Then your phone into its phone socket.

Yes the phone in test socket had a dangly filter on. But with nothing connected my mobile cuts off after 2 seconds.

Does the socket still contain a ring capacitor or is it in the filter?