I'm looking for a good voice over ip program to make phone calls using Ubuntu. Can you help me?
I only need the basic functionality i.e. voice (sound, audio) and not everything else. I don't require profiles, chat, account management, business vs personal accounts or so.
I only want a good basic functionality that also has good availability.
My geographic location is northern Europe (Stockholm), if that matters. I could be satisfied even with local calls only within Stockholm since that is my common case.
My preferences are, in descending order:
Low price or free of charge, quality of sound, lag, user-friendliness, community.
Price is the most important in this case since otherwise I might just use my regular cellphone.