Outside Calls: Scenario - Lucent Technologies MERLIN LEGEND Release 6.0 Network Reference Manual

Table 2–22. Outside Calls: Scenario 4
Originating or
Receiving System Dialed Digits

System H: Ext. FRL: 0

System H: Ext. FRL: 2

System H: Ext. FRL: 2

System G: Ext. FRL: 1

System E: Ext. FRL: 4
<
= Call sent over tandem trunks
Local Routing

 '
ARS Local Exchange Table routes to
tandem trunk pool, FRL 0, prepends
<
91703
Call routed to local main pool loop-start
line. |
 
 
ARS Area Code Table prepends 9 and
routes to tandem trunk pool, FRL 0
 
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Routes 1: ARS Area Code Table routes to
tandem tie trunk pool, FRL 1
Routes 2: If all lines in Route 1 are busy,
ARS Area Code Table routes to local
PSTN pool, FRL 3, call denied. Caller can
turn on Selective Callback and queue for
Route 1.
 
 
Routes 1: ARS Area Code Table routes to
tandem tie trunk pool, FRL 4, prepends 9.
<
Routes 2: If all lines in Route 1 are busy,
ARS Area Code Table routes to local
PSTN line/trunk pool, FRL 5, call
prohibited for this user. Caller can turn on
Selective Callback and queue for Route 1.
|
= Call sent over PSTN
Non-Local Routing
System E: ARS absorbs no digits, routes
to PSTN pool.
Not applicable
System E: ARS absorbs 4 digits, routes to
<
PSTN pool.
Route 1, System E routes to tandem PRI
<
pool connected to System F.
absorbs 4 digits, routes to local PSTN
pool. |
Route 1, System G: ARS absorbs no
digits, routes to local PSTN pool.
= Call ends
|
|
<
System F
|
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