If it were the Upload side, it would be about 10 Kbits; and as there is less traffic on the Upload side, it is easier fo Recover and Reset.

I have fast path.

Doesn't matter what kind of "...Path" you have, the principle still applies in practice.

Again, YOU NEED TO HAVE THE BELL CIRCUIT CHECKED BY A COMPETENT PERSON; and almost certainly replaced.

Most of the other Posters on this thread, have centuries of experience collectively of Electricity, Electronics, Telephones, Telecommunications etc.

NOT ONE HAS SAID THAT YOUR BELL CIRCUIT IS SAFE.

The majority are worried and expressed concern that you almost certainly have a Dangerous Bell Circuit.

Why are you so unwilling to accept and follow the advice of people who clearly have greater knowledge than you?

====================

Otherwise, why did you post your problem on this Forum, if you are nit going to follow/use that advice?

The cost of removing that present Mains-Iperated Bell Circuit and replacing it with something much safer is very small, Wireless Door Bells cost around £10 to £50; and generally do not need "installing".

In reply to a post by konrado5:

I have fast path.

So what? It is mainly applied to the downstream.

In reply to a post by konrado5:

I've talked about this doorbell with my father. He said that there aren't any transformer, transformers were used on old door bells only. The doorbell is connected directly to 230V mains.

Then why is Friedland still selling them in 2014? If you look at the doorbell site I linked will you find any mains operated doorbell that is not transformed down to 9-12v? No, it's quite the opposite; direct mains were only used on old door bells, if at all.

Also, if it were mains, you have an uninsulated connector block on the wall with its live metal screw heads accessible to any kid with a screwdriver / needle .

My parents old house had a bell, if the phone rang so did the bell, also if the door bell was pressed the bell would ring. 2 different rings so you could tell if it was the door or the phone.

From what has been described so far, you seam to have a similar set up, but the wiring to activate the bell when the phone rings has been disconnected. To the point of not sounding the bell, although some wiring may still exist from the phone side. Causing the interference.

So now when you press the door bell you may be getting interferance down some of the remaining phone wiring. This could also explain the earthing issue when unplugging your speakers, as the suspected mains wired door/Phone bell could have a earthing problem.

I'd go with advising to get it checked by a professional.

I live in Poland. Probably in Poland doorbells are connected directly to mains. This doorbell is from many years and nobody had electrical shock.

Best regards
konrado5

Ok, so what do you want? You now know the reason for the interference and you now know what you must do to sort it. You even know why.

Is there anything else you need help with?

In reply to a post by BatBoy:

Ok, so what do you want? You now know the reason for the interference and you now know what you must do to sort it. You even know why.

I know only this is reason for the interference when doorbell rings. This is very small interference, it is only noticeable with router statistics, it doesn't affect negatively on transfer rate. I'm curious if this installation causes any interference when doorbell doesn't ring. If it is not, it is not profitable to do anything with this installation.

Best regards
konrado5

My phone cable doesn't come into terminator. It comes into the wall very nearly of the connector.
Cheers
konrado5

In reply to a post by konrado5:

I'm curious if this installation causes any interference when doorbell doesn't ring.

Only you knows the answer. Do you get interference when the doorbell doesn't ring?