When an account has been assigned to you, the automated password assigned may be a little too difficult to remember (for obvious reasons!). You may want to change your password to something that you can remember so that you can access the portal a little bit more easier.
You can change your account password by going to 'Profile' -> 'Change Password'.
Do take note that your password must be at least 8 characters long.
If you have forgotten your password, you can request for a password reset. From the @voice portal login page, click on the 'Forget Password' link. You then need to enter your email address used. A system generated email will send you an email of your new password. Login with your email address and the new password provided.