User's Manual

Avaya Branch Gateway Manager 10.0 Page 188
15-601011 Issue 29r (Friday, November 02, 2012)B5800 Branch Gateway
5.4 Line
The line settings shown in the system configuration will change according to the types of trunk cards installed
in the control unit or added using external expansion modules.
· WARNING: Changing Trunk Cards
Changing the trunk card installed in an control unit will result in line settings for both the previous trunk
card and the currently installed trunk card. In order to change the trunk card type in a particular card slot,
the configuration must be defaulted. This does not apply if replacing an existing card with one of a higher
capacity or fitting a trunk card into a previously unused slot.
Trunk Incoming Call Routing
Each trunk type can be categorized as either an external trunk or internal trunk. The trunk type affects how the system
routes calls received on that trunk and the routing of calls to the trunk.
External Trunks
Internal Trunks
Trunk Types
· Analog trunks
· T1 Robbed Bit
· E1R2
· ISDN BRI (excluding So)
· ISDN PRI T1
· ISDN PRI E1
· SIP
· QSIG (T1, E1 or H.323)
· BRI So
· H.323
· SM Line
Incoming Calls
Routed by
All incoming calls are routed by comparison
of call details for matches within the system
Incoming Call Routes .
Line short codes are not used.
Incoming calls are routed by looking for a match
to the incoming digits in the following order:
· Extension number.
· Trunk short codes (excluding ? short code).
· System short codes (excluding ? short
code).
· Trunk ? short code.
· System ? short code.
Line Groups
Each system trunk (or in some cases individual trunk channels) can be configured with an Incoming Group ID and an
Outgoing Group ID. These group IDs are used as follows:
· Incoming Call Routes
For incoming calls on external trunks, the Incoming Group ID of the trunk is one of the factors used to match the
call to one of the configured incoming call routes.
· Short Codes - Routing Outgoing Calls
For dialing which matches a short code set to a Dial feature, the short codes Line Group ID can indicate either an
ARS form or to use a trunk from set to the same Outgoing Group ID. If the call is routed to an ARS form, the
short codes in the ARS form will specify the trunks to use by matching Outgoing Group ID.
Removing Unused Trunks
In cases where a trunk card is installed but the trunk is not physically connected, it is important to ensure that the trunk
is disabled in the configuration. This can be done on most trunks using by setting the line's Admin setting to Out of
Service.
This is especially important with analog trunks. Failure to do this may cause the system to attempt to present outgoing
calls to that trunk. Similarly, where the number of channels subscribed is less than those supportable by the trunk type,
the unsubscribed channels should be disabled.
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