User`s manual

Mediant 1000
H.323 User's Manual 92 Document #: LTRT-83401
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 (analog module)
or trunk (digital module) 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, define the IP to Tel Routing Mode
(described in Table 5-15) and Tel to IP Routing Mode (described in Table
5-14) 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 5.5.7.3 on page 116.
 For digital modules only: Assignment of NPI/TON to IPÆTel calls. The VoIP
gateway can use a single global setting for NPI/TON classification or it can use the
setting in this table on a call by call basis. Control for this is done using ‘Protocol
Management>Protocol Definition>Destination/Source Number Encoding Type’.
For configuring the Number Manipulation Tables, you can also use the following ini file
parameters (refer to Section 6.5.9 on page 236):
 NumberMapTel2IP: configures the Destination Phone Number Manipulation Table for
Tel to IP Calls
 NumberMapIP2Tel: configures the Destination Phone Number Manipulation Table for
IP to Tel Calls
 SourceNumberMapTel2IP: configures the Source Phone Number Manipulation Table
for IP to Tel Calls
 SourceNumberMapIP2Tel: configures the Source Phone Number Manipulation Table
for Tel to IP Calls