System Functions and Features as of I7.9
Call routing
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5. 6. 2
LCR function
To be able to make outgoing phone calls, a PBX user normally dials an exchange ac-
cess prefix first.
If the LCR function is deactivated the PBX routes the call in accordance with the ex-
change access prefix dialled (see
"Exchange access authorization", page 175
).
If the LCR function is activated and able to analyse the phone number dialled, the
phone number will be routed in accordance with the configured LCR criteria. The
exchange access prefix is not analysed by the LCR function.
The LCR function can be activated or deactivated throughout the system. If it is ac-
tivated, it can be deactivated for individual users.
Fig. 80
Outgoing exchange traffic using LCR
The call is analysed and routed in three stages:
•
Classification of the outgoing call on the basis of the LCR table and allocation to
a particular routing table.
$IGIT¬ANALYSIS¬
AND¬CONVERSION
/UTGOING¬CALL
%XCHANGE¬ACCESS¬PREFIX¬¬DESTINATION¬CALL¬NUMBER
)NTERNAL¬AND¬EXTERNAL¬BARREDCODE¬CHECK
,#2¬ON
,#2¬OFF
2OUTING¬TO¬
A¬NETWORK¬CONNECTION¬AS¬
PER¬CONFIGURATION
2OUTING¬TO¬
A¬NETWORK¬CONNECTION¬
AS¬PER¬,#2¬FUNCTION
#ONVERTED ¬DESTINATION¬
CALL¬NUMBER
$ESTINATION¬CALL¬NUMBER
HAZAAENB
