Version 6.6 665 October 2014
Installation & Operation Manual 41. PSTN Gateway and IP-to-IP Applications
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41.5.6 Operation Rules
The Operation rules are applied to any incoming call whose:
Destination number prefix matches the prefix defined in the ‘Destination Number’
field.
Source number prefix matches the prefix defined in the ‘Source Prefix’ field.
Source IP address matches the IP address defined in the ‘Source IP’ field (if
applicable).
The number manipulation can be performed using a combination of each of the
above criteria, or using each criterion independently.
The Operation rules are executed in the following order:
1. Num of stripped digits
2. Number of digits to leave
3. Prefix / suffix to add
For Destination Number Manipulation, up to 50 entries can be configured.
For Source Number Manipulation, up to 20 entries can be configured.
For available notations that represent multiple numbers, see 'Dialing Plan Notation' on
page 666.
Note: A number manipulation can be performed either before or after a routing
decision is made. For example, you can route a call to a specific trunk group
according to its original number, and then you can remove/add a prefix to that
number before it is routed.
To control when number manipulation is performed, configure TEL to IP routing
mode and IP to TEL routing mode parameters in the 'SIP Routing Properties'
screen.
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