[telecom] help?! problems sending cellular "texts"

Dec 21, 2024 Last reply: 1 year ago 1 Replies

"texts" in quotes because... read on...



Earlier this year I had to "upgrade" my cell phone to, in my case, a Motorola, umm, something, running the Android software.



Aside from the spybot nature (and that's just the admitted ones...) of far too many of the applications (which I've mostly locked off - at least as they report to me..) it's mostly good. And I have to say I'm impressed at the photo quality which, except for two uses, surpasses my DSLRs [a].



The problem: while most of the time I can send and receive [b] "text" messages, periodically I run into the following problem.



Earlier today I was sending out to a dozen or so people (individual, direct messages). Most went through ok but two of them stayed on my phone with "unable to send" flags.



They were kind enough to say something like (I forget the exact wording) "unable to establish encrypted connection. Try again in plain text?".



I told the phone to go ahead. Still no good.



Any suggestions? Note I've sent these people prior and later messages a-ok.



Thanks.



My phone, being an Android unit, tries to hook up via the "Rich Communication Services" (RCS) protocol.



This is pretty ubiquitous in the Android world and is making inroads to iPhones.



If my phone doesn't get the proper RCS handshake from the recipient, it's supposed to drop back to cleartext SMS (the older arrangement).



One of the people I was sending to has a pretty new Samsung Android with RCS, the other has an iPhone which might or might not...



Again, though, I've had earlier and later material go right through.



Any suggestions? Thanks mucly



[a] the two key exceptions are using extreme telephoto settings - as the lenses on my DSLRs are the real optical deal as opposed to digital cropping, and the ability to use polarizing filters.

Oh, one more: being able to set the shutter speed down to 1/10th or so of a second so I can take pictures of LED signs. With the phone, the picture is snapped too quickly and often the LED image is only partly captured.



[b] well, I don't "really" know if I've received all the messages since if I don't get them, and the sender doesn't follow up, etc., etc., etc.

_____________________________________________________ Knowledge may be power, but communications is the key snipped-for-privacy@panix.com [to foil spammers, my address has been double rot-13 encoded]


While RCS messages from iPhone to iPhone or from Android to Android are end-to-end encrypted, messages between iPhones and Androids are not.

This is one reason, the recommendation is now to use Signal for secure messaging to thwart both the Chinese spies in our telcom systems and Zuckerberg's spyware in WhatsApp.

Also, some cheap mobile carriers will randomly drop RCS messages without falling back to SMS.

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