The system shall ignore certain actions initiated by the monitoring party (i.e., digit events) when in the 'MONITOR PARTY WAIT' state.

The system responds by displaying the NOT POSSIBLE message for five seconds when the monitoring party presses a key which signals a flash (either the FLASH_KEY or a feature key that produces the same result) in an attempt to activate a feature when in the 'MONITOR PARTY WAIT' state. The call state remains intact.

An 'ON HOOK' by the MONITORING PARTY when in 'MONITOR PARTY WAIT' state results in the immediate deactivation of the whisper monitor feature.