Do you actually know it? The Web client of WhatsApp, or as Meta calls it: linked device. Unfortunately, this has one or more downsides, depending on how you view it.
On WhatsApp directly, I can only link another device at a time. For example, if I have WhatsApp Web on my PC and want to use it on a tablet, the PC gets deleted from the WhatsApp app as a linked device. So what would happen if I could only link one more device that could then be used on an unlimited number of devices?
Experience the Matrix
No, not the movies, even though I watch them very often. What I mean here is the server, or the Matrix software . Matrix is a server software that enables various services to be provided. These include services such as video conferencing, groups / individual chats, and bridges between individual external services. And so we use these bridges to enable WhatsApp on an unlimited number of devices. The same applies to Signal and Telegram. So you have the option to use an app for multiple messengers
What We Need
- An account on a corresponding Matrix server
- A Matrix client (An overview can be found here )
- 5 – 10 minutes of time
Have I Got Everything? How Do I Go On?
Hmm… Matrix account? Where do I get it?
First, we go to the website https://joinmatrix.org . and click on the corresponding link. We then search for a suitable server on the following page.
Here under Apply Filters I have set the criteria after searching for servers. German language and under Features I have selected Bridges. That is what we need.
| Selection of Filter | Server Selection |
|---|---|
 |  |
A click on Submit then provided me with this selection list. I decided for the first server immediately. tchncs.de .
On this page, you create an account, log in and select the appropriate bot. We then send a message to it so that this provides us WhatsApp, Telegramm, and / or Signal.
| Selection of Bot | Copyable Command |
|---|---|
 |  |
Depending on what you want as a bridge, you select the appropriate bot, copy the marked item in the second image and begin a new conversation by pasting it into the line that you see in the third image. It appears when you have logged in.
You chat with the bot for something, so that it reacts.
Then enter the following commands:
Login (with your phone number)
QR Code with the main device scan, where the WhatsApp app is installed (for Telegramm follow the further instructions)
After you have logged in to WhatsApp, you can tell the bot that it should synchronize your contacts and groups.
This is done with the command
sync contacts
sync groups
If synchronization of contacts does not work, you can also alternatively list the contacts. You do this with the command
list contacts
It looks approximately like this. You will not see all your contacts, therefore you can also write to people with whom you want to communicate via WhatsApp directly.
To do this, you find out the phone number of the respective person and tell the bot the following:
pm +49 (dietelefonnummerdeskontaktes)
Important here: The number must be written in international format. So with the respective country code. If you do not already have these phone numbers saved in your address book in this format, you must change it here.
An overview of the respective country codes worldwide can be found here: Wikipedia
Otherwise, you can also click on the links to the profiles and then on the right side on Message. Then a room will be created in which you can write to the respective person.
In Conclusion
Whether or not you need it is left up to each person themselves. It has so far had the advantage that WhatsApp can be used on more than just one other device. I can use it on an unlimited number of devices if I want.
Furthermore, I can use multiple messenger services in one app and do not have to move around with the device where the main accounts are used. With WhatsApp, I must show the “main device” online once every 14 days.
Here you could now think about whether you do not want to put WhatsApp into a virtual prison so that you do not need a Meta App for WhatsApp on your smartphone at all. At least WhatsApp 75 Permissions are approved, which are actually not necessary.
However, it is only to very few people that it is incomprehensible why one still holds fast to WhatsApp despite the whole data and user scandal of Meta. I mean, the last scandal at Meta has revealed over 45 million user accounts. And yet, no one is bothered.
Therefore, what I wrote here is only for people who are concerned about their privacy and / or want to combine WhatsApp, Telegramm, and / or Signal in a messenger.
Who wants to put WhatsApp into a virtual prison should perhaps read here .
One last thing to say about this whole thing: If you use a lot of chat messages but can also call directly (my opinion), you should check beforehand whether the specific server supports it. It doesn’t work on every server and not with every Matrix client.
