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A comment on Starlink Direct to Cell. Parent comment

Re:Starlink Direct to Cell by lxgr on Wednesday October 11, 2023 @08:44PM (#37852194)
I believe their communication layers are fairly different – WhatsApp used to use something based on XMPP at least until a while ago; I'm not sure what Signal uses, but I vaguely remember it being based on HTTP?
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Re:Starlink Direct to Cell by ale42 on Thursday October 12, 2023 @06:37AM (#37855466)
Can definitely be, I never investigated in detail, although I used alternative open source clients for both (signal-cli and a long time ago yowsup), so the information should be in there...

I hoped that Signal's use of HTTP was as a fallback in case a direct connection could not be established to use a more "compact" protocol, but I possibly don't remember correctly what I've read...

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