Isup.mangle

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The isup.mangle message is sent by the ISUP Mangler module allowing to modify the parameters of an ISUP message passing through the STP

Parameters

message-type
Type of the intercepted message
protocol-type
Keyword indicating the encoding standard: itu-t, ansi
address
Name of the mangler component generating the message and Circuit Identification Code
opc
Originating Point Code of the message (numeric)
dpc
Destination Point Code of the message (numeric)
sls
Signalling Link Selection in the message label
slc
Signalling Link Code of the link the message was received on
cic
Circuit Identification Code for the message

Other parameters are taken from the message and are similar to those of an incoming ISUP call but have no prefix.

Notes

  • The OPC, DPC, SLS and CIC of the message cannot be changed as that will break basic SS7 and ISUP assumptions.
  • You must not alter the IAM continuity check flags as it would cause the test to fail or the loopback to be left in place indefinitely.
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