Over the past two days I've been using jitsi 1.1 r4255 on debian wheezy
heavily for voice and video calls. These calls are sometimes
presentations or general customer-facing calls, generally 45-90 minutes
jitsi to jitsi communications work really well. I'm surprised at the
HD-quality video I can sustain literally across the globe from the US
to Europe, China, or South Africa. I even shared my desktop from linux
to Windows users without issue.
jitsi to SIP provider works well. Sometimes the SIP provider cannot
understand the keypad entries/DTMF tones. I've seen this with two SIP
providers so far. The issue comes and goes.
jitsi to jitsi video chats cause java to consume 2 of my 4 cores on an
Intel i5 cpu. Add zrtp encryption to that and I consume 4 of 4 cores
with video calls for the duration of the call.
For the most part, you forget about jitsi and focus on the
communications. This is a great place, because jitsi is the tool and it
should get out of the way.
Jitsi just works, great job!