If your phone supports e-SIM I would recommend something like Airalo. Source: 12 months ago

Alternatively look for a data esim like esimdb.com or airalo.com for regional esim you can install prior to departure. Can check the big Euro carriers for regional deals like Orange or 3, etc. Source: 12 months ago

I was just the Marangu route. There was wifi in the huts, but I bought e-sim for data. It was available almost everywhere. I used airalo.com. But find even more similar companies. Source: 12 months ago

Esimdb.com or airalo.com is your solution. Source: 12 months ago

Suggest getting esimdb.com or airalo.com esims prior to leaving the US and use Fi data sparingly hoping not to get suspended. Source: 12 months ago

Without knowing your requirements, it's hard to make any real recommendations. Mumble, XMPP Jingle (groups possible) and Matrix all are options with audio (and some video) call support. Source: about 2 years ago

Take encrypted file transfer for instance. let's say I'm in an OMEMO chat session with you and I click my client's "send file" button. How do I know whether or not my file is going to be encrypted? there's enough wiggle room at the intersection of all of the relevant XEPs (not to mention client-defined behavior) that I'm not sure I could actually tell you for sure without looking at the source code for both clients. Source: over 2 years ago

Unnecessary for a chat protocol. In addition, if you want that you could just move to XMPP instead which does have XEP-0166: Jingle SIP-like session initialization. You could also use Mumble instead. Source: about 3 years ago