Abstract: The present invention involves cases and overlays for a handheld electronic devices used for data entry. The case comprises a cover portion and an overlay portion having one or more actuatable keys for interacting with an enclosed electronic device without direct physical contact of the device by a user. Optionally the overlay portion includes one or more openings which allows a user to directly contact the enclosed device. Interchangeable overlays are also disclosed allowing for different combinations and configurations of keys and/or openings depending on the electronic device being used and the desired task being performed.

Abstract: The airtime charge for a receiving wireless telephone station is assigned to an account that is not associated with the wireless telephone station receiving the call. For example, for a telephone call placed from a conventional home wired telephone station to a wireless telephone station, the airtime charge for the receiving wireless telephone station of the call is billed to the account associated with the home wired telephone station.

Abstract: The problems with reaching unavailable mobile telephones, and the unnecessary costs associated therewith are avoided by a) marking as unavailable a wireless telephone to which a wireless telephone call could not successfully be completed; b) waiting for the wireless telephone to register, i.e., signal its availability to receive calls; and c) notifying the caller of the wireless telephone call that could not successfully complete that the wireless telephone is now available. Optionally, any call attempts to the wireless telephone during this waiting period are disallowed, i.e., no attempt is made to contact the wireless telephone over the wireless telephone service provider's network.