Apparently EASA state that "Over and Out" is now standard phraseology, particularly on HF.
Roger That :ok:

Affirm - yes
Roger- i copied your info as long as it is not an instruction(which is compulsory to read back)
Wilco- instruction and abbreviation for certain instructions where you will comply(QNH, rwy instr, FL etc is a different story)

Why only the germans do their readback to ATC by starting with their call signs,which is notmally at the end of the readback, and the rest of the world not?figure out.

Many guys now are just happy and readback when actually ATC cut the callsign or was cut off or wrong and similar call sign? Instead of just say again and/or clarify?