A communication method of managing communications to and from a handset device controlling a therapeutic product delivery device is described. The method comprises transmitting, to a server, at least part of a unique identifier for a handset device for controlling a therapeutic product delivery device, and patient information regarding a user to be associated with the handset device, and at the server, associating the handset device with the patient information, generating a handset specific code, and transmitting the handset specific code to the user. At the handset device, a manual input of the handset specific code is received, and the future transmission of data from the handset device to the server carried out in association with the handset specific code. In this way, the server can be sure that the user is in possession of the handset (because the user received the code via the secure portal, and was required to manually input it to the handset), and can therefore be confident that communications received in association with that code are associated with the correct user and handset.一種管理手持裝置控制治療產品傳輸裝置間之通訊的通訊方法，其係將手持裝置之獨特辨識身份認證與使用者之患者資訊傳至伺服器，以建立與手持裝置間之連結。之後，利用伺服器將患者資訊傳送至手持裝置，並產生手持裝置特定碼予使用者；由使用者將手持裝置特定碼輸入於手持裝置；以及手持裝置根據手持裝置特定碼而與伺服器間進行資料傳輸。由於使用者必須事先經由一安全的入口網站獲取特定碼，再將特定碼輸入於手持裝置，伺服器即可成功確認使用者是否正確持有手持裝置，同時確保傳輸之通訊資料可成功連結至正確的使用者及其手持裝置。
