Thank you for your response. At network level, taking all call attempts in consideration and calculating the failure rate of them, we obtain an indicator called Blocking rate. This indicator has the same significance as GOS from Erlang B, if we assume that the customer will not retry after a failed attempt. At cell level, the differences occurs because of handover coming in or out the cell.
Do you have the same understanding of the correlation between GOS – Erlang B and Blocking rate?