User`s manual

SIP User's Manual 5. Web Management
Version 5.0 91 December 2006
5.5.3 Configuring the Number 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.
The Manipulation Tables are:
 Destination Phone Number Manipulation Table for IPÆTel calls
 Destination Phone Number Manipulation Table for TelÆIP call
 Source Phone Number Manipulation Table for IPÆTel calls
 Source Phone Number Manipulation Table for TelÆIP calls
Note: Number manipulation can occur either before or after a routing decision
is made. For example, you can route a call to a specific hunt 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 done, set the IP to Tel Routing Mode (described in
Table 5-18) and the Tel to IP Routing Mode (described in Table 5-17)
parameters.
Possible uses for number manipulation can be as follows:
 To strip/add dialing plan digits from/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 here before the call is setup.
 Allow / disallow Caller ID information to be sent according to destination / source
prefixes. For detailed information on Caller ID, refer to Section 5.5.9.3 on page 121.
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To configure the Number Manipulation tables, take these 5 steps:
1. Open the Number Manipulation screen you want to configure (Protocol Management
menu > Manipulation Tables submenu); the relevant Manipulation table screen is
displayed. Figure 5-14 shows the ‘Source Phone Number Manipulation Table for
TelÆIP calls’.
Figure 5-14: Source Phone Number Manipulation Table for TelÆIP calls
2. From the ‘Table Index’ drop-down list, select the range of entries that you want to edit
(up to 20 entries can be configured for Source Number Manipulation and 50 entries for
Destination Number Manipulation).
3. Configure the Number Manipulation table according to Table 5-13.