Toshiba Strata CIX Developer's Guide

Stratagy ES has the ability to centrally manage the attributes of mailboxes with User Agents called 
Class of Service (COS).

The COS design is based on a parent/dependent concept. The COS assignment within a mailbox 
User Agent and any mailbox that references that number in the Class of Service field inherits the 
feature set or properties of the parent COS and is considered a dependent.

Any changes to the parent COS affect the corresponding dependent mailboxes. However, any 
change made to an individual dependent mailbox does not change other mailboxes belonging to the 
COS. (See 

 for instructions on making changes to dependent 

mailboxes.)

With a COS design, a feature belonging to a group of mailboxes can be modified by simply making 
the change in the COS User Agent that is the master or parent of the group. If a mailbox has no COS 
number, it is considered independent and is not affected by a COS. 

The following rules apply to Classes of Service:

Mailboxes can be taken out of COS by selecting the No COS selection in the Class of Service 
field.

Established mailboxes given a COS number after their creation only inherit changes that are 
made after they have been included in the group.

A COS User Agent cannot be deleted until its COS number has been removed from all 
dependent mailboxes.

If a COS is copied, the new (copied) COS inherits all attributes of the original COS but remains 
independent from the original COS.

If a dependent mailbox is copied, the new mailbox becomes a dependent mailbox and a part of 
the COS group.

When you right-click a Mailbox Editor screen field, a small 
“Inherited” box displays. If the box is checked, the field has 
inherited the setting from the COS parent’s mailbox (shown right). 
If the box is unchecked, the field has not been inherited.

If you modify the value in an Inherited field, the Inherited check 
mark is removed when you display the “Inherited” box. To change 
the field back to the inherited value, right click on the field and 
when the Inherited box displays, check the box.

See 

 for instructions on resetting a group of fields to the 

inherited features for the mailbox.

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