I have been relying on quite poor VOIP service to place calls to large orgs that have call centers. The voice quality was lousy and recently my VOIP provider screwed something up and the service became broken.
I am not hearing-impaired but I think TTY might solve my problem. If I need to call a large org/agency that is likely TTY-capable, is this possible without some kind of service? In principle, shouldn’t I be able to connect to a bank or something without using any kind of subscription service? Linux, gnu screen, ssh, a terminal, Internet should be all I need, no?
My searches for TTY either yields results about how deaf people can use dedicated hardware or a Telecommunications Relay Service (“TRS”) -- or the search results are about /dev/tty* which is just a UI for sending commands to a command interpreter (apparently not a human). There are claims that all iPhones and /some/ Androids can do TTY. But doesn’t that still rely on phone service? I prefer NOT to use a phone or phone service.
This question has no answers, but it’s along the lines of what I need. There is this Zapata thing but that project has had no status since 2004.
Update
After more looking, it seems an “IP-TTY” relay service is needed for this situation. Searches so far lead to services that want to force a proprietary app on you, which only works on proprietary platforms.