How does Unicom card handle CRBT business by SMS?

Send "kt" to 10655 158 to activate the ringing function;

Send "cx" to 10655 158 to inquire the ringtone information of personal ringtone library;

Send "mr+ serial number" to 10655 158 to set the specified song as the default ringtone;

Send "new" to 10655 158 to get the "ringing new songs list" and so on.

Send "bd" to 10655 158 to get the "ring bell popularity list" and so on.

Send any "song name" or "singer name" to 10655 158 to get the ringtone content;

Send "BZ or H" to 10655 158 for help information.

* According to the query results, you can customize the reply serial number and set it as the default ringtone.