Avaya Communication Manager Administrator's Manual page 1396

Feature Reference
Bridged call appearance
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Hold — Automatic
— Single-line telephones
A call cannot be put on hold if more than one user is active on that call.
The primary telephone user, when no other bridges are active on the call, can put the call
on hold, using normal single-line hold procedures. If the primary telephone user
successfully soft holds the call, the status lamp at all of the bridged appearances shows the
hold indication; and then the call can be put on hard hold by dialing the hard hold FAC.
The hard held call is no longer accessible to the bridging users until it is taken off hold by
the primary telephone user. After the call is put on hard hold, any new call to the primary
telephone is tracked by the bridged appearances.
A bridging user can place an active call on hold (if the primary telephone or any other
bridges are not active on the call) by using normal multiappearance hold procedures. Any
attempt to enter the held call returns it to the status of an active call that can then be
accessed using bridging procedures.
If hold is not allowed because of the preceding reasons, the user can just go on-hook and
then reenter the call as required, because the call remains accessible as long as the primary
telephone or any bridging user is active on it.
— Multiappearance telephones
Any user (primary or bridged appearance) can place an active call on hold. If only one
user is active on a call and places that call on hold, the indicator lamp at both the
principal's appearance button and the bridged party's appearance button shows that the
call is on hold. If more than one user is bridged onto the active call, and one of the users
activates Hold, the activator receives "hold" indication for the call and status lamp of all
other bridged users remains active.
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Hotline Service (single-line telephones)
If a single-line telephone is administered for Hotline Service, bridged appearances of that
telephone's extension also places a hot line call automatically when a user goes off-hook on that
bridged appearance.
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Hunt Group (DDC or UCD)
Bridged call appearances cannot be used in conjunction with DDC or UCD hunt groups.
Although you can assign a bridged extension to a hunt group, Avaya does not recommend such
assignment because DDC/UCD calls do not terminate at any bridged appearances of that
extension on other telephones.
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Intercom — Automatic and Intercom — Dial (multiappearance telephones only)
Bridged appearances of a primary extension number are not rung for intercom calls. Furthermore,
if a telephone has no primary call appearances it can never be rung for an intercom call.
Therefore, if a secretary is screening all calls for the principal, and is indicating who is calling via
intercom, the principal must have a call appearance on which to receive and send intercom calls.
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Internal Automatic Answer (IAA)
Calls terminating to a bridged appearance of an IAA-eligible telephone are not eligible for IAA.
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Last Number Dialed (LND)
Activation of the LND feature causes the last number dialed from the activating telephone to be
redialed, regardless of the extension number used (primary or bridged call appearance).
1396 Administrator's Guide for Avaya Communication Manager
November 2003