A method for transmitting data from a mobile communication device to a remote server across a wireless network is described. The method comprising the following steps. Data is transmitted from an application executing on the mobile communication device using a standard reliable communication protocol. Prior to transmitting the data across the wireless network, receipt of the data is acknowledged, thereby simulating, to the application, receipt of the data by the remote server. Data is transmitted from the mobile communication device to the remote server using an intermediary communication protocol. A mobile communication device and a system implementing the method are also described.