A method for sharing credentials between a first appliance, having a credentials module, and a second appliance, the method including the steps of: selectively operating the first appliance for communicating with the credentials module, thereby enabling phone calls to be made and received; physically engaging the first appliance with the second appliance; thereby interfacing the second appliance with the credentials module for enabling a service of the second appliance. Preferably, the interfacing includes engaging electrical contact. Preferably, the interfacing includes using a short-range contactless interface. Most preferably, the short-range contactless interface utilizes at least one communication technology selected from the group consisting of: ISO 14443 technology, NFC technology, Bluetooth technology, infrared technology, and acoustic-interface technology.