Your Skype Linux is aborting randomly just a few seconds after connecting? (console message: skype: pcm.c:2782: snd_pcm_areas_copy: Zusicherung »src_areas« nicht erfüllt.)
Try this in your terminal:
it seems like Skype is expecting this directory and crashes when its not there.
This bug is known since at least 2011-04-14 but new Skype owner Microsoft apparently is not in a hurry to fix it.. 🙁
Tested with Skype 18.104.22.168
Solution found here.