Hello! My name is*****
It looks like your Skype account might have been compromised. For that reason, I suggest changing your Skype password ***** You can do that on this link:
Once you have changed the password, sign out of your Skype account on all devices, and then sign in with your new password. Make a test call and let me know if the German person is still there.
Did you change the password ***** I suggested? Is the problem still there?
Let me know,IT Miro
If this strange behavior happens with only one contact, then it seems the problem is not on your end, but on another person's end. For that reason, you can suggest your partner in France that he/she changes the Skype password ***** well as scan their computer for viruses.
That should make that German voice go away.
Let me know the results.