Telecode conversion uses the old four-digit codes used by the Taiwan Telephone & Telegraph Bureau, these codes uniquely identify 16356 Chinese characters, they are organized into two planes: plane 1 numbered from 0000 to 8045, and plane 2 numbered from .0000 to .8489.
This section contains instructions on how to use the I-Tien input mode to input Chinese characters
Open a new Terminal turn on Chinese-input conversion on by pressing Control-spacebar.
Press the F12 key to turn on Telecode mode.
The mode appears in the status area.
Type the first three digits of code 3456, as below.
Press the spacebar and the Telecode input converter finds only one matching character and displays it as below: