I've been browsing the Internet for quite a while on the search for an alternative to Skype.
Since I'm looking for a cross-platform program, I chose Jitsi for a start but found that it works quite unreliable (e.g. shuts down when receiving a call) and lacks some technical sophistication as well (e.g. produces echos, stops transmission for seconds during a call). Thus it's not what I'm looking for.
Is there some program you can recommend (Linux - Linux/Linux - Windows)?
I'd really like to avoid using Skype as a last resort.