Method for the operation of a system and system for the administration of calls to a call center

A method for the operation of a system for the administration of calls to a call center, wherein by the system a first call initiated by a caller using a call number allocated to the call center is automatically received, the first call is held in a waiting queue comprising other calls waiting to be forwarded to a call center agent until it is forwarded to a call center agent, a waiting position with respect to the first call is determined in the waiting queue, the first call is ranged in the waiting queue corresponding to the determined waiting position, and the calls held in the waiting queue are forwarded one after the other to a call center agent if such an agent is available, wherein the waiting positions of the calls which are still held in the waiting queue are respectively adapted, characterized in that by the system a call number of the caller is recorded with the first call, the first call is terminated within a predetermined time interval if the call has not been forwarded, a second call to the caller is initiated by using the recorded call number and if the second call is answered, the second call will be ranged in the waiting queue, wherein the waiting position within the waiting queue is determined in consideration of the first call.