A method for use at a user device of a communications network include utilizing a configuration file obtained from a remote device to configure a communication of an application executed at the user device without requiring user input, the configuration file including logic applied by the application to identify, from a plurality of data bearers available to the user device, a select data bearer for use in conducting the communication based on one or more parameters representative of the current operational context of the user device. The user device includes a storage module to store a configuration file obtained from a remote device and a processing module to execute an application, wherein during execution the application is to utilize logic of configuration file to identify, from a plurality of data bearers available to the user device, a select data bearer for use in conducting a communication of the application.