A. Disabled User Account

The first method is to use a disabled user account:

1.Select User Management from the Admin menu.

2.Add a new user, eg. Sales.

3.Uncheck the Login Enabled check box.

4.Select a user from the list of users and click the Access button.

5.Give the user access to the new user account you created.

6.Repeat steps 3 to 4 for each user.

The new user will appear in the user list for each user.

When logging phone messages simply send them to the user you created.  All users will be able to access the messages from that Inbox via the user list (as shown above).