Hi Dave,
This is possible, but as you noted **Highly Discouraged**. Have a look;
Phone Password Restriction Settings
Phone password restriction settings allow you to define a system-wide password policy that applies when subscribers access Cisco Unity by phone. For greater security, establish rules that prevent passwords from being easy to guess and from being used for a long time. At the same time, is also best to avoid requiring passwords that are so complicated or that must be changed so often that subscribers have to write them down to remember them. Consider requiring that subscribers use a long eight or more digits and non-trivial password when you specify phone password restrictions.
Phone password restrictions cannot be changed for individual subscriber accounts. However, you can use the password settings on the template and individual subscriber pages in the Cisco Unity Administrator to govern the passwords that subscribers initially use to log on to Cisco Unity by phone, and to define whether and when subscribers can change their own phone passwords. You can also use the Cisco Unity Bulk Import wizard to set phone passwords for multiple subscriber accounts at the same time. (Refer to the Cisco Unity Bulk Import Help for details.)
Subscribers > Account Policy > Phone Password Restrictions Page
Phone Password Length Select one of the following settings:
Permit Blank Password Subscribers are able to log on without entering a password. Note that this leaves subscriber messages vulnerable to unauthorized access and toll fraud.
Minimum Number of Characters Subscribers are required to create a password at least X characters long. X is the value specified in the adjacent box. In general, shorter passwords are easier to use, but longer passwords are more secure. Eight or more digits is recommended.
When you change the minimum password length, subscribers will be required to use the new length the next time they change their passwords.
Hope this helps!
Rob
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