A hearing aid fitting system, adapted for remote fitting of a hearing aid, comprising a client, an external device, a control server, look-up means, and link means, wherein the client, external device, control server, look-up means and hearing aid are adapted to communicate by link means; - wherein said look-up means is adapted to allow a unique device identification to be searched based on a multitude of search term types; - wherein said client, comprises fitting software, adapted to fit a hearing aid, selection means, adapted to select a unique device identification using said look-up means, and connection software, means adapted to connect to said control server, to provide to said control server a current computer network address of the client, the selected unique device identification and a hearing aid fitter identification, and to request said control server to establish a direct communication channel between said client and the external device having said unique device identification for the person holding said fitter identification; - wherein the external device, comprises a unique device identification, external device software application means adapted to provide said unique device identification and a current computer network address of the external device, to said control server, and redirecting means adapted to direct the content of the data transmitted over said direct communication channel to the hearing aid system, - wherein said control server, comprises interface means adapted to provide the direct communication channel between the client and the external device based on the current computer network addresses and the selected unique device identification and based on an evaluation of whether the hearing aid fitter holding said hearing aid fitter identification is entitled to access the external device having said unique device identification. - wherein said look-up means is adapted to allow a unique device identification to be searched based on a multitude of search term types; - wherein said client, comprises fitting software, adapted to fit a hearing aid, selection means, adapted to select a unique device identification using said look-up means, and connection software, means adapted to connect to said control server, to provide to said control server a current computer network address of the client, the selected unique device identification and a hearing aid fitter identification, and to request said control server to establish a direct communication channel between said client and the external device having said unique device identification for the person holding said fitter identification; - wherein the external device, comprises a unique device identification, external device software application means adapted to provide said unique device identification and a current computer network address of the external device, to said control server, and redirecting means adapted to direct the content of the data transmitted over said direct communication channel to the hearing aid system, - wherein said control server, comprises interface means adapted to provide the direct communication channel between the client and the external device based on the current computer network addresses and the selected unique device identification and based on an evaluation of whether the hearing aid fitter holding said hearing aid fitter identification is entitled to access the external device having said unique device identification.