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by khalladay 1078 days ago
For some weird reason, when im travelling with wifi calling, receiving sms messages is a crap shoot. I basically dont get them if theyre sent by a gov agency, bank, etc.

I do still get them from android phones. Its weird, i have no idea why.
2 comments
JimDabell 1078 days ago
SMS 2FA often blacklist VOIP and similar systems to avoid abuse. Try receiving SMS 2FA at a Twilio number, for instance – it’s super unreliable. There are virtually no providers where you can reliable receive 2FA via SMS programmatically, with the exception of a handful of companies who use large banks of real SIM cards.
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janfromdaito 1078 days ago
Twilio has a whole support article on why you probably don't receive certain SMS messages: https://support.twilio.com/hc/en-us/articles/223133447-Not-R...
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gruez 1078 days ago
>I do still get them from android phones. Its weird, i have no idea why.

If you have an android phone yourself, maybe it's not actually SMS and it's actually RCS[1]?

[1] https://en.wikipedia.org/wiki/Rich_Communication_Services

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cesarb 1078 days ago
> If you have an android phone yourself, maybe it's not actually SMS and it's actually RCS[1]?

And, in my experience, Android pushes you heavily to enable RCS; every time you open its messages app, there's a chance that it will randomly ask you to enable it, with a large button to enable and a small link to dismiss the dialog without enabling. I never tried, but I expect that once enabled, it'll never ask again, so it might have been enabled by accident sometime in the past.

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