Comunicating from your Linux machine?

[Linux for blind general discussion]

Oh I almost forgot ... you can try Mumble, though it's designed more for 
chat room style communication as opposed to one-to-one communication. 
There is also Linphone, but I seem to have better luck with it on 
Android than on Linux for some time now, though I haven't tried it 
recently. Linphone is a SIP application, so it is good for talking as if 
you're talking on a phone, either one-to-one or via your favorite 
conference bridge, and there are many of those across the internet. I 
used to use another SIP phone called I believe it was SFLPhone, but I 
don't know how active that project is now.

~Kyle