# \[ARN-Messager\] Bridge Matrix room with Signal, WhatsApp and Telegram IM chat using one shared IM account **URL:** \ **Category:** Apps\ **Tags:** matrix, english\ **Created:** [January 27, 2026, 12:20am UTC](https://forum.yunohost.org/t/arn-messager-bridge-matrix-room-with-signal-whatsapp-and-telegram-im-chat-using-one-shared-im-account/41402 "2026-01-27T00:20:39Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![gauthier67](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@gauthier67](https://forum.yunohost.org/u/gauthier67)\ **Post date:** [January 27, 2026, 12:20am UTC](https://forum.yunohost.org/t/arn-messager-bridge-matrix-room-with-signal-whatsapp-and-telegram-im-chat-using-one-shared-im-account/41402/1 "2026-01-27T00:20:39Z")
ARN-Messager is a Supervisor Robot to use together with Mautrix Bridges to benefit from Relay Mode. It enables non-logged-in accounts to bridge rooms over a shared IM account. The Mautrix Bridges log into the IM-Network over the `relaybot_admin` shared IM account. > **[GitHub - YunoHost-Apps/arn\_messager\_ynh: ARN Messager package for YunoHost](https://github.com/YunoHost-Apps/arn_messager_ynh)** > > ARN Messager package for YunoHost ## How to deploy your own ARN-Messager Bridge ? In the Android world: - Buy a cheap or free SIM card allowing to receive SMS - Get an old Android Smartphone that nobody uses - if possible with working Camera but not required - Android \>=5.0 for WhatsApp - Android \>=8 for Signal - Put a strong pass phrase and activate encryption !! Lots of personal data may transit over this phone !! - Install the Android IM-App(s) you want to bridge: Signal, WhatsApp and/or Telegram. - Create a shared account on the IM-App(s) with the SIM card. !! Don’t use your own IM Account !! - Note that account creation requires the native Signal/Telegram/WhatsApp Apps, then you can switch to FOSS forks if you want. Also, as far as I remember, for Telegram you need a native Android, native App with access right to read directly the incoming account validation SMS. On Yunohost side: - Install Synapse Matrix Home-Server [https://github.com/Yunohost-apps/synapse\_ynh/](https://github.com/Yunohost-apps/synapse_ynh/) - Install the Mautrix Bridge for the IM-App you want to bridge, e.g. [GitHub - YunoHost-Apps/mautrix\_signal\_ynh: Matrix signal package for YunoHost](https://github.com/Yunohost-apps/mautrix_signal_ynh/) - enable relaybot - give `@arnmessager:server.tld` admin permission - give relay permission to anyone `*` or only the servers you select - Create a Matrix `relaybot_admin` user, e.g. `@arnmessager:server.tld` - do NOT set it synapse admin - Install [GitHub - YunoHost-Apps/arn\_messager\_ynh: ARN Messager package for YunoHost](https://github.com/YunoHost-Apps/arn_messager_ynh/) , giving the password of the created user, the Yunohost ID of the Synapse and Mautrix Apps you installed, e.g. `synapse`, `mautrix_signal` - Define Matrix servers or users (MXID) that will be allowed to bridge rooms, e.g. `bot_users: server.tld` - Define Admins that will be allowed to send admin commands to the Mautrix Bridges over ARN-Messager - Login as `@arnmessager:server.tld` in a private browser tab !! Lots of personal data may transit over this account !! - Invite the Mautrix Bot of an IM you want to bridge to a private chat, e.g. `@signalbot:server.tld` - Send him a message to login with the shared IM-Account, e.g. `!sg login` or `!wa login qr` - A QR-Code is displayed in the Matrix room in response - Open the IM-App on your smartphone \> Settings \> Linked Devices \> Link a new Device \> Scan the QR-Code - Repeat for other IM How to bridge a Group from Signal Android App: - (Add a contact with the shared account phone number) - (Create a Signal Group) - Invite the shared account in the group - Wait for the welcome message from the Bot - Write the MXID of the user to invite in the created Signal portal-room : `!am @user:server.tld` - The user invited will gain admin rights in the portal-room and be able to invite other Matrix users - Add Signal contacts or send them the invitation link - Recommended: Enable end-to-bridge encryption in the room - !! BEWARE THAT BRIDGED ROOMS CANNOT BE END-TO-END ENCRYPTED !! Regarding End-to-Bridge Encryption: ---
**Author:** ![gauthier67](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@gauthier67](https://forum.yunohost.org/u/gauthier67)\ **Post date:** [March 25, 2026, 9:58pm UTC](https://forum.yunohost.org/t/arn-messager-bridge-matrix-room-with-signal-whatsapp-and-telegram-im-chat-using-one-shared-im-account/41402/2 "2026-03-25T21:58:25Z")
Pour les Français 😃 [https://www.sfr.fr/offre-mobile/forfait-cle-4g-5g](https://www.sfr.fr/offre-mobile/forfait-cle-4g-5g) → formule à la journée → 11€ à payer une fois → 3€ par jour où de la data a été consommée → une SIM gratuite pour avoir un numéro et recevoir des sms Créer des comptes whatsapp, signal, telegram & co