Abstract: A telecommunications service node is connected to a data network using a packet data protocol and a telephone network using a circuit switched protocol. The service node is also connected to a wireless roaming network using the IS-41 signaling protocol. The service node stores status information, including location and registration information, for mobile computing devices connected to the data packet network. The location information includes a temporary data network address for visiting mobile computing devices. The service node manages voice calls to and from the mobile computing devices. If a call is received to a mobile computing device which is not registered, the service node will attempt to connect the call to a wireless telephone associated with the mobile computing device, or a predefined destination established as a preference by the user.

Abstract: An internal combustion engine such as a multi-cylinder in-line engine having on one side of the cylinder head an air induction system and on the opposite side an exhaust system, each extend generally in the direction of the length of the engine. Each of said systems extending above the level of a cylinder head of the engine and a fuel rail is provided extending in the direction of the length of the engine and mounted on the cylinder head to be located between the air induction system and the exhaust system. The fuel rail overlies and is in fuel transfer communication with respective fuel injector units mounted in the head of each cylinder of the engine. Preferably, the fuel rail is configured so as to provide sufficient clearance on the exhaust side thereof to enable spark plugs to be appropriately arranged within the cylinder head on the exhaust side thereof.