Nortel-networks NN43001-106 Manual de usuario Pagina 504

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504 B34 Dynamic Loss Switching
GEC Plessy Hardware
No losses are sent to XCOT, XDID, and XFEM trunk cards when these
cards are connected to GEC hardware, since there is no dynamic switching
done for them. On the GEC hardware side of such a connection, the pads
are switched in according to the type of trunk (near end) as opposed to
what it is connected (far end); therefore, the loss is switched in regardless
of whether the connection is to XCOT, XDID, and XFEM trunk cards or
other types of cards.
ISDN Basic Rate Interface
It is possible to switch in loss on the ISDN BRI side, based on port types.
MFE/MFC Pads
The Alternative Loss Plan feature allows trunks to be configured so as have
pads switched in when am MFC sender/receiver is equipped. For such a
configuration, the following occurs for B34 port types:
pads are switched in for outgoing calls (the trunk is the originator), or
pads are switched in, if in the dialing state, for incoming calls (the tr unk
is the terminator).
Off Premise Extension Pad Switching
Pads can be switched on an Off Premise Extension card depending on
the type of connection.
XCOT, XFEM, and XDID Cards
XCOT, XFEM, and XDID cards are the suite of international IPE cards
which are configured under the XTRK prompt in LD 14. The cards in this
suite include XDID/DOD, XFCOT, XFEM, XDID, and XCOT. When B34
Dynamic Loss Switching is enabled, these cards receive B34 messages.
Since certain mar kets do not desire this functionality, B34 Dynamic Loss
Switching should not be enabled.
During lamp audit for active calls on XCOT, XFEM, and XDID cards, a
type 5 message for pad switching is sent to these cards, based on their
configuration. When B34 Dynamic Loss Switching is enabled, the type 5
message is not sent; instead, a B34 message is sent, based on the last loss
switching message sent for that call.
XEM and XUT Cards
XEM and XUT cards are the suite of North American IPE cards which are
configured under the XTRK prompt in LD 14. The cards in this suite include
XUTJ, XUT Hong Kong, XEM, and XUT. When B34 Dynamic Loss Switching
is not enabled, there is no change in the operation of pad switching on
these cards. When B34 Dynamic Loss Switching is enabled, the expanded
Nortel Communication Server 1000
Features and Services - Book 1 of 6 (A to B)
NN43001-106 01.04 Standard
Release 5.0 27 July 2007
Copyright © 2007, Nortel Networks
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