Avaya Communication Manager Administrator's Manual page 1398

Feature Reference
Bridged call appearance
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Service Observing
The telephone user or bridging user can bridge onto a service observed call at any time. If the
telephone is being service observed and an incoming call is answered by the bridging user, the
call is not observed unless or until the telephone user bridges onto the call. Conversely, if the
bridging user is being service observed and an incoming call is answered by the telephone user,
the call is not observed unless or until the bridging user bridges onto the call.
If the bridging user activates Service Observing using a bridged appearance, Service Observing is
activated for the bridging user.
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Terminating Extension Group (TEG)
TEG calls to the primary extension do not ring at the associated bridged appearances. TEG calls
cannot be answered or bridged onto from a bridged appearance of the TEG member's primary
extension. The primary telephone should not be assigned to a TEG.
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Transfer
— Single-line telephones
A call cannot be transferred by an analog telephone if more than one user is active on that
call.
The primary telephone user, when no other bridges are active on the call, can transfer the
call using normal single-line transfer procedures. Any attempt by a bridging user to bridge
onto this call during a successful transfer attempt is denied (a standard denial response is
returned to the bridged appearance).
An analog bridging user, alone on a bridged call, can transfer the call, using normal
transfer procedures. Any attempt by the primary telephone user to bridge onto this call
during a successful transfer attempt is ignored; and any attempt to bridge on by a bridging
user is denied.
If the bridging user has no other available bridged appearances of the primary extension
(other than the one he or she is currently on), the bridging user, after pressing the
conference/transfer button, must select a call appearance to be used for the transfer, before
dialing the number.
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Multiappearance telephones
If the bridging user has at least one available bridged appearance of the primary extension (other
than the one he or she is currently on), the system automatically selects a bridged call appearance
for the transfer when the conference/transfer button is pressed.
You can administer the system to automatically select the first idle appearance if there is no idle
appearance with an extension matching the extension that is transferring the call.
If the primary user and the bridged user are both on the call when one user transfers the call, the
user performing the transfer becomes the controlling user for the participation of both users on the
conference. The controlling user is immediately dropped from the call. When the noncontrolling
user hangs up, the appearance goes on soft hold. In this case, one of two things must occur to
disassociate the appearance from the call: all other parties on the call hang up, or the controlling
user rejoins the call and hangs up again.
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Videophone 2500 (single-line telephones)
A user may not use an analog bridge to a Videophone 2500 principal that is on a video call.
1398 Administrator's Guide for Avaya Communication Manager
November 2003