- 1 server
The Mitel Nuisance Call Handler application is a Windows Service which normally runs all the time. Depending on configuration, it can monitor all of the station, hunt groups and workgroups on the system or some subset of them for inbound calls. When an external call presents, the caller ID is retrieved and if it is empty then, depending on configuration, it will be left to ring or it can be immediately transferred to a configured extension. If the call has caller ID then this is compared to a configured list of either disconnected or transferred to a configured extension. Whenever the service transfers a call due to no caller ID or a nuisance caller ID it will mark the call so that if the call presents to an extension that is being monitored it will no longer be blocked. This is to prevent calls looping and also to allow the calls to be sent to a person who could decide to allow the call to continue and transfer the call.