TONE-SENDING CONTROL METHOD

摘要

The method minimizes the voice information loss and improves the communcation quality of exchanger system. The device includes an internetwork subsystem (40:INS) , a time switch (T-SW), and a exchange subsystem (10 or 30: ASS) which has a tone generator (TG). The method includes a 1st means which transmits the first tone of blocking and standby tone, a 2nd means which ceases the first tone transmission, a 3rd means which transmits the second tone of blocking and standby tone, a 4th means which ceases the second tone transmission, and a 5th means which connects the standby tone in the second peroid.