Version 5.2 121 September 2007
SIP User's Manual 5. Web-based Management
Table 5-19: General Parameters (Routing Tables)
Parameter Description
Add Trunk Group ID as
Prefix
[AddTrunkGroupAsPref
ix]
 [0] No = Don't add trunk group ID as prefix (default).
 [1] Yes = Add trunk group ID as prefix to called number.
If enabled, then the gateway's trunk group ID is added as a prefix to the
destination phone number for Tel-to-IP calls.
Notes:
 This option can be used to define various routing rules.
 To use this feature, you must configure the trunk group IDs.
Add Trunk ID as Prefix
[AddPortAsPrefix]
 [0] No = Don't add trunk ID as prefix (default).
 [1] Yes = Enable add trunk ID as prefix
If enabled, Add trunk ID number (single digit in the range 1 to 8 ) as a
prefix to the called (destination) phone number for TelÆIP incoming calls.
This option can be used to define various routing rules.
Replace Empty
Destination with B-
channel Phone Number
[ReplaceEmptyDstWith
PortNumber]
 [0] No = Disabled (default).
 [1] Yes = Internal channel number is used as a destination number if
called number is missing.
Note: Applicable only to Tel-to-IP calls, if called number is missing.
Add NPI and TON to
Calling Number
[AddNPIandTON2Callin
gNumber]
 [0] No = Do not change the Calling Number (default).
 [1] Yes = Add NPI and TON to the Calling Number of incoming (Tel to
IP) ISDN call.
For example: After receiving a Calling Number = 555, NPI = 1, and TON =
3, the modified number is going to be 13555. This number can later be
used for manipulation and routing purposes.
Add NPI and TON to
Called Number
[AddNPIandTON2Calle
dNumber]
 [0] No = Do not change the Called Number (default).
 [1] Yes = Add NPI and TON to the Called Number of incoming (Tel to
IP) ISDN call.
For example: After receiving a Called Number = 555, NPI=1 and TON = 3,
the modified number is now 13555. This number can later be used for
manipulation and routing purposes.
IP to Tel Remove
Routing Table Prefix
[RemovePrefix]
 [0] No = Don't remove prefix (default)
 [1] Yes = Remove the prefix (defined in the IP to Trunk Group Routing
table) from a telephone number for an IP-to-Tel call, before forwarding
it to Tel.
For example: To route an incoming IP-to-Tel call with destination number
21100, the IP to Trunk Group Routing table is scanned for a matching
prefix. If such prefix is found, 21 for instance, then before the call is routed
to the corresponding trunk group, the prefix (21) is removed from the
original number so that only 100 is left.
Notes:
 Applicable only if number manipulation is performed after call routing
for IPÆTel calls (refer to 'IP to Tel Routing Mode' parameter --
RouteModeIP2Tel = 0).
 Similar operation (of removing the prefix) is also achieved by using the
usual number manipulation rules.
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