Version 5.2 113 September 2007
SIP User's Manual 5. Web-based Management
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 include:
îš„ Destination Phone Number Manipulation Table for IP-to-Tel calls
îš„ Destination Phone Number Manipulation Table for Tel-to-IP calls
îš„ Source Phone Number Manipulation Table for IP-to-Tel calls
îš„ Source Phone Number Manipulation Table for Tel-to-IP 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
(RouteModeIP2Tel), described in 'IP to Trunk Group Routing' on page 126,
and Tel to IP Routing Mode (RouteModeTel2IP) described in 'Tel to IP
Routing Table' on page 122 parameters.
Possible uses for number manipulation can be as follows:
îš„ To strip or add dialing plan digits from or to the number. For example, a user could dial
9 in front of each number to indicate an external line. This number (9) can be removed
before the call is setup.
îš„ Allow or disallow Caller ID information to be sent according to destination or source
prefixes. For detailed information on Caller ID, refer to the SIP Series Reference
Manual.
 Assignment of NPI/TON to IPTel 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 'Number Manipulation and Routing Parameters' on page 318):
îš„ NumberMapTel2IP: configures the Destination Phone Number Manipulation Table for
Tel to IP Calls
îš„ NumberMapIP2Tel: configures the Destination Phone Number Manipulation Table for
IP to Tel Calls
îš„ SourceNumberMapTel2IP: configures the Source Phone Number Manipulation Table
for Tel to IP Calls
îš„ SourceNumberMapIP2Tel: configures the Source Phone Number Manipulation Table
for IP to Tel Calls
To Next Page
Loading...
Need help?
General