@mckinley@twtxt.net Yes, I’m still with jmp.chat, and still very happy with them overall. Their beta period ended and their pricing increased a bit, so that’s worth a bit of consideration. I also managed to get one of their eSIMs. I’m slightly less happy with that aspect of their service, though they seem to be actively working on improving it and I knew in advance this was an early beta kind of thing and likely to have issues.

The only unreliability with calls that I’ve noticed was traceable to the unreliability of my own internet connection. I’ve confused incoming calls by simultaneously making and taking calls from the computer and the phone, but I think it’s understandable that problems might arise and that’s not a real use case for me. Once or twice I did not receive a text transcription of a voice mail, but the support is usually quick to address things like that.

I host my own XMPP server and have for a good decade now, and that’s what I use with jmp.chat. I can’t speak to the quality of their hosting options.

Group texting works fine for me if one of the other parties initiates the group text. I haven’t tried to initiate my own group text in well over a year; last time I did, it didn’t work. That may or may not be a problem for you, and it may or may not have been fixed by now. Worth investigating more if it’s important. I should also say I’ve only ever used group texts with 3 participants, and can’t speak to what happens if there are more nor whether there are upper limits.

Group texts don’t use MUC. Rather, they use a special syntax in the JID, something like “+1XXX,+1YYY,…,+1ZZZ@cheogram.com”, where the + and , are required, the XXX, YYY, through ZZZ are the phone numbers (no dashes or other special chars just digits), and the @cheogram.com at the end is required.

I recommend the cheogram app if you’re on android. It has a lot of nice features on top of the Conversations base. I use gajim on my (linux) computer and it works well with jmp.chat.

I’m happy to answer other questions if you have them!

@jmjl@tilde.green I’m sorry that I’m not super knowledgeable about alternatives to jmp.chat but I’ll tell you what I know.

You’re probably right about jmp.chat not working for you, at least as it is now. You can only get US and Canadian phone numbers through it last time I checked, so if you’re not in either of those countries you’d be making international calls all the time and people who wanted to call you would be making international calls too.

I’ve seen people talk about using SIP as an intermediary: you can bridge SIP-to-XMPP, and bridge SIP-to-PSTN (PSTN = “packet switched telephone network”, meaning normal telephone). You can skip the SIP-to-XMPP side if you’re comfortable using a SIP client. I don’t know very much about SIP or PSTN so I am not sure what to recommend, but perhaps this helps your search queries.

There are a fair number of services like TextNow that let you sign up for a real telephone number that you can then use via their app (I wouldn’t use TextNow–they had tons of spyware in their app). I don’t know if that kind of service works for you but if it does perhaps you’d be able to find one of them that isn’t horrible. This page (https://alternativeto.net/software/jmp-chat/) has a bunch of alternatives; I can’t vouch for any of them but maybe it’s a starting point if you want to go this route.

Good luck!