Abstract: The present invention relates to a method and arrangement in a telecommunication system for transferring of loading data (i.e., software) from a first telestation to at least one selected memory unit in a second telestation. The data is transferred on channels in a transmission link between the two stations. The channels are normally assigned traffic related information and speech related information. However, such traffic is temporarily halted in a channel that is used to send the loading data. This enables data to be quickly loaded into a selected memory unit of the telestation without causing conflict with data being sent on other channels through the link.