How to install dependencies for Gajim?

[ryo]

If you happen to try JMP.Chat and get Gajim incoming calls working on your phone, please let me know. I looked through my packages and it looks like I have the required dependencies. I'm not sure if the preferences pane in Gajim is accurate in showing the dependencies installed or not. I tried the "pamac-manager" command in the terminal and the pamac GUI popped up. I uninstalled Gajim and then reinstalled. The process asked me if I wanted to install optional dependences. I checked and installed all of them. pamac-manager GUI shows ten (10) repositories, too. There is no change in my call issue, though. For Gajim to work properly, all other XMPP clients with your account must be offline. I'll keep looking at it.

I was more looking into something like a video chat feature in LINE rather, not necessarily something that gives you a phone number.
I don't use JMP, and I don't really feel like getting an American or Canadian number after my experience with phone numbers provided by Skype, on which I got random calls from "Microsoft tech support" with an Indian accent or a dentist in Washington DC reminding me at 3 AM of an appointment for my kids, to which I had to explain that 1) I don't have any kids, and 2) I don't live anywhere near the US, so I have no idea why I would make an appointment.
Or a grandma who kept dialing my number thinking I was somehow her grandson even after telling her 50 times in a row that she's dialing the wrong number.