A method includes obtaining, using at least one
processing device of an electronic device, input identifying a specified service offered by a
mobile network operator that is not currently part of a service plan associated with the electronic device. The method also includes generating, using the at least one
processing device, a subscription message for the
mobile network operator, where the subscription message requests the specified service from the
mobile network operator. The method further includes initiating, using the at least one
processing device, transmission of the subscription message to the mobile network operator. In addition, the method includes obtaining, using the at least one processing device, a response to the subscription message, where the response indicates that the electronic device has been subscribed to the specified service.