If you change the phone password under the default subscriber template in Cisco Unity 4.0(4) and save, the changes do not update and the phone password stays as the original default password.
This issue is addressed in Cisco bug ID CSCef07484 - SA: Sub template phone password not saved.
The workaround for this issue is to change the value in the Structured Query Language (SQL) database.
Note: As a precaution, it is always recommended to back up your system before making any manual changes to the SQL database.
Perform this procedure: