Nortel Meridian Meridian 1 Feature Description And Administration page 751

Feature interactions
• The Idle Extension Notification feature is not valid for the 2616 set.
• If in an ISDN network environment there are nodes with the Idle
Extension Notification feature active and nodes without the feature
active, the feature will not work across the network. However it will
work locally in the nodes where it is active. If an attempt to request for
Idle Extension Notification on an extension situated in a node that does
not have this feature active is made, no response from the node of the
extension will be received and the SACP lamp stays dark. The attempt is
canceled when the attendant presses the Release/Release SRC key. An
error message (ERR5334) is printed in the node of the extension.
The Idle Extension Notification feature is not supported on ACD DNs.
An Idle Extension Notification call cannot be placed on hold by the attendant.
If the attendant attempts to place an Idle Extension Notification call on hold
before the Release key is pressed, the Idle Extension Notification request is
canceled and the call is disconnected. An answered Idle Extension
Notification recall cannot be placed on hold until after the SACP key is
pressed to ring the extension.
When an attendant has requested an Idle Extension Notification, it can be
canceled by then pressing the Position Busy key. This will also cancel all
other Idle Extension Notification requests.
Idle Extension Notification and pre-dial Break-In are mutually exclusive. It
is possible to press the Break-In key, the DN of a busy extension (to override
call forward, for example), and then press the SACP key to request Idle
Extension Notification. While the SACP lamp is lit, it is not possible to press
the Break-In key to complete the Break-In. Conversely, if a Break-In
conference is underway, it is not possible to activate Idle Extension
Notification by pressing the SACP key.
International ISDN PRI Feature description and administration
Idle Extension Notification Page 751 of 1814