I do not understand Ericsson. Ok. One IPA-Number should be used in only one MD110. Thatswhy you can not change the NIU to an other IPA-Number in a normal manner. But if I buy a new NIU, I can set it to every IPA I want. So for Ericsson the problem is still there. They can not prevent to use licences twice so far. This policy from Ericsson I do not understand. The only way would be to sell NIU/NIU2 with a stored Customer-IPA and without any possibility to downgrade. If they do not do this, than whosrdaddy can tell us the procedure and we all have less problems...