Version 5.2 329 September 2007
SIP User's Manual 6. ini File Configuration
Table 6-12: Number Manipulation and Routing Parameters
ini File Field Name
Web Parameter Name
Valid Range and Description
AltRouteCauseIP2Tel
Table of call failure reason values received from the PSTN side (in
Q.931 presentation). If a call is released as a result of one of these
reasons, the gateway attempts to find an alternative trunk group for that
call in the 'IP to Trunk Group Routing' table.
Format for this ini file parameter table:
[AltRouteCauseIP2Tel]
FORMAT AltRouteCauseIP2Tel_Index =
AltRouteCauseIP2Tel_ReleaseCause;
[\AltRouteCauseIP2Tel]
For example:
[AltRouteCauseIP2Tel]
AltRouteCauseIP2Tel 0 = 3 (No route to destination)
AltRouteCauseIP2Tel 1 = 1 (Unallocated number)
AltRouteCauseIP2Tel 2 = 17 (Busy here)
[\AltRouteCauseIP2Tel]
Notes:
 For an explanation on ini file parameter tables, refer to 'Structure of
ini File Parameter Tables' on page 269.
 This parameter can appear up to 5 times.
 If the gateway fails to establish a call to the PSTN because it has no
available channels in a specific trunk group (e.g., all trunk group's
channels are occupied, or the trunk group's spans are disconnected
or out of sync), it uses the Internal Release Cause '3' (no route to
destination). This cause can be used in the AltRouteCauseIP2Tel
table to define routing to an alternative trunk group.
 For defining the Reasons for Alternative Routing table using the
Embedded Web Server, refer to 'Reasons for Alternative Routing' on
page 130.
EnableETSIDiversion
Defines the method in which the Redirect Number is passed towards
the Tel side.
Valid options include:
 [0] = Q.931 Redirecting Number Information Element (default)
 [1] = ETSI DivertingLegInformation2 in a Facility Information
Element
FilterCalls2IP
For a description of this parameter, refer to 'General Parameters' on
page 103.
Alternative Routing Parameters
RedundantRoutingMode
Determines the type of redundant routing mechanism to implement
when a call can’t be completed using the main route.
 [0] = No redundant routing is used. If the call can’t be completed
using the main route (either using the active Proxy or the first
matching rule in the internal routing table), the call is disconnected.
 [1] = Internal routing table is used to find a redundant route (default).
 [2] = Proxy list is used to find a redundant route.
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