I'm having difficulty determining the detailed steps of the call routing flow in IPCC
As I understand it:
0. (optional pre-route)
Call arrives at gateway
gateway passes call to CMGR
CMGR may transalate call DN to new DN.
CMgr makes route request to ICM using DNIS or DN(?)
ICM runs script with trans route included, then (?) sends a special trans label to the PG, informing it to wait for a call with a particular ID to arrive.
IPIVR runs it's script, then returns some kind of label to ICM, -- but I don't see the route points in ipivr as dns in ICM. Once this label arrives the trans route is complete, and the first route in the tranroute to vru node is ignored, call is sent to ?? the route in the tr node OR the route chosen in the script path after the trToVRU script node?
IPIVR gets the call again then requests CMgr to connect it.