Gets support rooms where new messages was added since lastChange or taken room state was changed.
            
Namespace: CMS.ChatAssembly: CMS.Chat (in CMS.Chat.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- lastChange
 - Type: 
System Nullable 
DateTime 
If null, all messages which were added later than resolveddatetime are considered as new. 
- siteID
 - Type: 
System Int32
Only global rooms and rooms on this site will be returned 
Return Value
Type:See Also