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Apple announces that RCS support is coming to iPhone next year (9to5mac.com)

submitted 11 months ago by [email protected] to c/[email protected]

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In a surprising move, Apple has announced today that it will adopt the RCS (Rich Communication Services) messaging standard. The feature will launch via a software update “later next year” and bring a wide range of iMessage-style features to messaging between iPhone and Android users.

Apple’s decision comes amid pressure from regulators and competitors like Google and Samsung. It also comes as RCS has continued to develop and become a more mature platform than it once was.

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[–] [email protected] 1 points 11 months ago

Pretty much. RCS just defines the protocol. That is basically how messages are formatted, how recipients and senders are labeled, how timestamps are formatted, how messages are compressed, transferred and possibly stored and resent in case of inability to deliver (e.g. recipients phone is off) and a lot more technical stuff.

To use this, you need a network of servers that can actually receive messages from phones/ cell network, then possibly transfer them to a server/ cell tower near the recipient(s) to have it broadcast there, making sure only the intended recipient can decrypt it, and possibly storing it for an unknown duration and a number of attempts to deliver it if the recipient is unreachable. And possibly sending a receipt or failure-to-deliver message back to the sender as well. And all of this has to work reliably 24/7, because people will not accept downtimes.

And then you also need client software on the phones to send/receive messages using the RCS protocol as well, hopefully handling true e2e encryption as well.

It's a lot of hardware and software engineering to actuallyimplement such a seemingly fundamental standard.