Hi! and welcome!
If you want to remove this hangup cause from the ones that generate alerts, I think you need to edit the "hangups" document in the "system_config" database. There should be a key "ignore_hangup_causes" that will contain a list of hangup causes that Kazoo considers "normal" or expected. You can add this redirection cause to that list, flush the cache "sup kapps_config flush" on the VM, and see if that does the trick.
See here for more about monitoring hangup causes.