I have MLPP configured on a CME router as well as on 2 x CUCM 9 clusters. All intracluster MLPP calls work as expected for calls on their individual clusters. Additionally, I have successfully configured INTER-CLUSTER MLPP calls between the CUCM clusters.
Trying to get MLPP to work from CME to CUCM.
On CUCM, I force a DN to be busy to occupying both channels with active calls. I attempt a call from CME to the DN and it rings busy - as expected. I retry the call using the MLPP access digit and then the MLPP code of 0 followed by the DN. "MLPP Blocked Precedence" shows in the phone display.
debug ccapi indicates disconnect cause code 17 (phone is busy)
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