It’s just a thought, but since text messaging uses the Signaling System 7 out of band signaling channel, how does a service provider create and support text messaging once POTS and SS7 have been replaced?
Presumably that could be done, somehow, using similar techniques as instant messaging, at least up to a point. Whether it can be done in ways that still preserve current profit margins might be a bigger question.
Or, does text messaging simply become a “discontinued” service? That seems unlikely, but has to be addressed, at some point. Also, if that is going to be done, why is text mesaging a service that a mobile service provides?
Why couldn’t it be a service that any ISP could create and deliver?