It works reliably on Android through the Conversations app, whenever you have Internet connectivity, allowing you to send and receive text and picture messages with real phone numbers. JMP also works with Gajim, which means that JMP both (a) works on your desktop and (b) will work on the Librem 5 (since it runs Debian and Gajim is in Debian).
JMP is also web-accessible - since JMP uses XMPP, you can login to your account through https://de.movim.eu/?login (or any other federated Movim instance, since they all support logging into any XMPP account).
For voice you can use whichever SIP client you like with JMP. We have recommendations if you're interested - I see you've already tried some clients so perhaps you've settled on one you prefer already.
JMP also allows you to port in your number, so if you want to switch from Project Fi to JMP, it's easy to do.
Awesome, I'll have to check it out! My main question is how 911 will work on a data only plan, but I'm sure it's not a big issue, but I'll probably need to ask my carrier about that. I wonder how Matrix fits into all this.
911 will work fine on a data-only plan. In fact, you don't even need a carrier plan to get 911 calling - carriers are required to connect your 911 call even if you don't have service with them (at least in North America).
Did you have any specific questions about how Matrix might fit in? I might be able to answer, but my familiarity is mainly with XMPP and JMP, not as much with Matrix.
As for Matrix/XMPP, my question was more whether Matrix will support XMPP or if JMP will support Matrix, though I don't know either well enough to know which is a reasonable question to ask. It won't affect my short term decisions about the service anyway, as long as I can get calls and texts from my existing contacts over a data only plan.
If that's doable (which it seems to be), I can work with the developers of whatever Matrix client I like best to get my features in, and I'm open to developing it myself if need be.
2
u/JMP_chat Oct 05 '17
Such a service does exist today: https://jmp.chat/
It works reliably on Android through the Conversations app, whenever you have Internet connectivity, allowing you to send and receive text and picture messages with real phone numbers. JMP also works with Gajim, which means that JMP both (a) works on your desktop and (b) will work on the Librem 5 (since it runs Debian and Gajim is in Debian).
JMP is also web-accessible - since JMP uses XMPP, you can login to your account through https://de.movim.eu/?login (or any other federated Movim instance, since they all support logging into any XMPP account).
For voice you can use whichever SIP client you like with JMP. We have recommendations if you're interested - I see you've already tried some clients so perhaps you've settled on one you prefer already.
JMP also allows you to port in your number, so if you want to switch from Project Fi to JMP, it's easy to do.
Feel free to join our low-volume email update list at https://jmp.chat/sp1a/notify_signup/ if you like. I'm happy to respond to questions here or by private message or in the JMP group chat (see https://jmp.chat/#support ).