Hi all , hope this is the right place to ask this type of question Happy I’m living in Germany and I have a standard doorbell phone system in my apartment, but because the apartment is big , I’m unable to hear the bell in my bedroom.
My question is , are there any doorbells that can work synchronized ( one at the corridor and one in bedroom) + an app in phone . But only with audio function , because at the entrance we have no cameras , just a simple button for each apartment .
Sorry for my English , I know it’s not good , but I’m doing my best here Happy

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I never fixed mine.

Years ago I lived in a big house and my office was in the back. It was a rental so for me the fix was to tell folk that were coming over to text me on my phone if I didn't answer the door.

Anyone else was usually delivery and I knew when they were coming.

But there is a product called:
"Door Chime Extender"
"Door Bell Extender" that may do what you want.

Example at

Basically the one unit goes near your existing bell and the second where you wish.

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Not the right one :)

Thanks for reply Happy but I was looking like for a whole set ( probably just my English ) Happy
So I need the thing that’s connected to wall , with the speaker microphone and buttons to open doors etc. , then I need the second one , the same type only without connecting it to the wall , so that I can open doors and speak if I’m in corridor or in bedroom , and if I need I can take it to other rooms too Happy

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And connect it to phone , so I can do all the features with phone too Happy

At the moment I’m renting apartment, so I can almost anything , but so that I can put back the old system after Happy

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Most of these systems are made, installed and deployed by access control companies. I fear in this case you are beyond consumer grade devices. Good hunting.

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Hope dies last :D

Well , the phones are centuries old , but there aren’t a lot wires inside , that’s why I’m trying to look for help in tech related forum Happy maybe someone will be able to help Happy i don’t need to change the whole system , only my end of it Happy

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I wish it was that simple.

While I am an electroncs designer, author of apps and more, this looks to be a custom job that I would not attempt over a forum. Some of my works are in Stanley Access Technologies products but nothing there fits your requirements. So maybe more thought about what you can buy and install yourself?

That is, it's going to be custom so you have to understand what you have and what you are going to install. I'm not there to check out your system.

Note: edited for spelling.

Post was last edited on April 13, 2018 6:24 PM PDT

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That’s what I wanted in first place Happy new phone system with an option to put the old one back when I’m changing apartment Happy

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I think I can do it on my own , my hands a growing from the right place , I just don’t understand all the wires that are coming from the wall Happy

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A wire is just a wire.

Since you are replacing both ends, then you need to check for continuity and nothing more. If you are trying to leave one end installed then yes, you get out a Volt meter and have someone press a button to see what happens at your end. There is no standard here. The company that did the original likely never documented this so we get to reverse engineer when we keep the remote or one end.

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Found something

So, today I found something almost perfect for me, Honeywell has a wired to wireless adapter, the only problem is that they don’t have the open door function , maybe you know something similar to this thing ? Happy

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