One or more computer readable media, that enable a method for remotely activating one or more communication-forwarding functions for a mobile-communication device are provided. The present invention allows a forwarding service operated by a provider of mobile communication services and a forwarding application that runs on a mobile communication device to be remotely activated by a user that does not have possession of the mobile communication device. The mobile communication device receives an activation message with instructions to automatically activate a communication-forwarding function. In response to the activation message the mobile communication device activates the requested communication-forwarding function in conformity with the instructions in the activation message. The activation message is generated and sent by an activation-message generator.