Not entirely sure what "current expectations of asynchronous text-wrapped delivery" exactly means.
I had fun recently using my 5 W shortwave #hamRadio transceiver to transfer a text message to someone's computer connected to a similar transceiver. The recipient read that message on return (of attention) to their amateur radio station. My transceiver sits in Berlin, Germany, the other one somewhere in Australia. Direct antenna to antenna communication.
Pertinent?