| 摘要 |
<p>checking whether an inputted key is a deletion, addition or rename code; deleting the name in the directory, and re-arranging the names of directories, upon receiving a deletion key; issuing an error message if the inputted key is an addition key and if the same name already exists, and otherwise, inserting the name to be added and re-arranging the list in the English alphabetic order; renaming the name in the directory upon receipt of a rename code; and sending ring signals to the relevant telephone number upon encountering an intra-station telephone number; and sending ring signals to the relevant telephone number upon encountering an inter-station telephone number.</p> |
