Trained telephone operators are also usually responsible for dispatching these emergency services. There are Asynchronous Compute Engines controlling computation and dispatching. There is some run time cost associated with dynamically dispatching function calls. The Exec has two additional mechanisms for optimizing dispatching. These intercoms usually appear as circuits on communications consoles in dispatching centers. In March 2013, Jabong was dispatching over 6,000 orders a day. He then reloaded in plain sight of the last enemy soldier before dispatching him too. Jordan has three commercial airports, all receiving and dispatching international flights. Other methods of dispatching victims were used on an experimental basis. Self-Defense Forces have conducted overseas activities such as dispatching UN peacekeepers to Cambodia. All the lines are controlled automatically from the central dispatching, near I.P. Pavlova station. Dispatching messages to his friends' palace chambers for them to come, he received no answers. Taximeters can include several accessories, or act as components in larger dispatching/control systems. Generally the wholesale electricity system adjusts to changing demand by dispatching additional or less generation. In order to accomplish this type of dispatching, several different approaches can be taken.