How to use Voice Service Password Change
68A user dials *89*SSSSSS*NNNNNN#, the announcement "The new service you applied for has been registered" is played, indicating that the password is changed successfully.
NOTE:
SSSSSS indicates the six-digit old password. NNNNNN indicates the six-digit new password. The default old password is 123456.
The password must contain six digits and cannot include the asterisk (*) or number sign (#).