One- and two-way code translations using linked-list storage

The paper describes two applications of the computer-programming technique of linked lists to code translators. The first application is to a dialling code to routing or charging digits translator, where the input and output have arbitrary complexity in terms of number of digits and number and length of translations. The second application is for number to equipment-number translation. It increase in storage requirements, at the cost a simple one-to-one translator, such as is used for directory-number to equipment-number translation. It is shown how two-way translations may be obtained, without increae in storage requirements, at the cost of restraining the complexity of the input or output code.