Note• We recommend that parameters for each COS number be defined before assigning a Class of Service(COS) to each mailbox or creating new mailboxes.• COS No. 513 and 514 are assigned by default to the Message Manager and to the System Manager,respectively. No other mailboxes can be assigned to COS No. 513 and 514.Value RangeCOS No. 1–514Maintenance Console Location20.1.2 UM Configuration—[1-2] Mailbox Settings—Full Setting—Mailbox ParametersPC Programming Manual References10.9 PBX Configuration—[2-9] System—System Options—Option 921.1 UM Configuration—[2] Class of ServiceFeature Guide References3.1.1 Unified Messaging System Overview3.2.1.11 Class of Service (COS)Covering ExtensionForwards calls to a second extension when the first extension’s subscriber is not available to take the call. TheCovering Extension is one of the Incomplete Call Handling options that can be enabled or disabled by thesubscriber. The caller can also be transferred the Covering Extension by pressing [0] while a Personal Greetingis being played, or while leaving a message.NoteExtension Groups or Logical Extensions (extensions whose calls are set to always be directed theirmailboxes) cannot be assigned as covering extensions.Value Range1–8 digitsMaintenance Console Location20.1.2 UM Configuration—[1-2] Mailbox Settings—Full Setting—Mailbox ParametersFeature Guide References3.2.1.14 Covering ExtensionInterview MailboxAssigns an interview mailbox to the subscriber’s mailbox. In order for it to function properly, the interviewmailbox number must not be the same number as an existing mailbox and an existing mailbox group.NoteEach caller’s replies to an interview session are saved as one message.868 PC Programming Manual20.1.2 UM Configuration—[1-2] Mailbox Settings—Full Setting
