MP-40x SIP MediaPack BRI Series
SIP User's Manual
82
Document #: LTRT-53301
Figure
6-9: ISDN Hunting Logic
6.2.2.6 Manipulation Tables
The VoIP gateway provides four Number Manipulation tables for incoming and outgoing
calls. These tables are used to modify the destination and source telephone numbers so
that the calls can be routed correctly. In additional to numbers, the manipulation tables
support manipulation roles based on signs and/or letters A possible use for number
manipulation can be to strip and add dialing plan digits from and to the number. For
example, a user could dial "9" in front of each number in order to indicate an external line.
This number ("9") can be removed before the call is setup.
The Manipulation Tables include the following tables:
IP to Tel Destination Number Manipulation Table for IP-to-Telephone (Tel) calls (refer
to Section '
897H941H
IP-to-Tel Destination Numbers
' on page
898H942H
83
)
Tel to IP Destination Number Manipulation Table for Tel-to-IP calls (refer to Section
'
899H943H
Tel-to-IP Destination Numbers
' on page
900H944H
85
)
IP to Tel Source Number Manipulation Table for IP-to-Tel calls (refer to Section '
901H945H
IP-to-
Tel Source Numbers
' on page
902H946H
86
)
Tel to IP Source Number Manipulation Table for Tel-to-IP calls (refer to Section '
903H947H
Tel-
to-IP Source Numbers
' on page
904H948H
87
)
IP to Tel Source Number Manipulation Table for IP-to-Tel calls (refer to Section '
901H949H
IP-to-
Tel Source Numbers
' on page
902H950H
86
)
Tel to IP Source Number Manipulation Table for Tel-to-IP calls (refer to Section '
903H951H
Tel-
to-IP Source Numbers
' on page
904H952H
87
)
Note:
Number manipulation can occur either before or after a routing decision is
made. For example, you can route a call to a specific ISDN interface
according to its original number, and then you can remove or add a prefix
to that number before it is routed. To configure whether number
manipulation is performed before or after call routing, use the 'Routing &
Manipulation' parameter in the SIP Proxy & Registration screen (described
in Section '
905H953H
SIP Proxy & Registration Settings
' on page
906H954H
69
.
