this post was submitted on 20 Aug 2024
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The Signal messenger and protocol.

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https://signal.org/

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[–] TheHobbyist@lemmy.zip 8 points 2 months ago

There are at least two criteria for a contact to appear:

  • the contact needs to use signal
  • they must not have disabled contact discovery (which I think is now disabled by default)

If you know they have signal, you can send a message request and they can accept it for you to be able to chat.