474.5.3 GROUP CALL- Status on received Group Call R : GROUP ITU- Display on designated Groupbeing calledD GROUP- Calling party’s User MMSI orNameSTR6000D ALL- It represents Category. ROUTINE161) When received Group Call, press any keys except ENT, ESC to stop alarm. Channel ischanged to the designated channel on the automatically received DSC Call. Name ofgroup is one of three groups name, which avails to set up.2) It does not need to send Acknowledgement, if wanted, it may be initiated with voicecommunication by pressing PTT on designated channel. The received calling date will bestored at Call Log.4.5.4 GEOGRAPHY CALL- Receiving Geography Call R : GEOGRAPH ITU- Calling party’s User MMSI orNameSTR6000D- Calling Time. 12:30 UTC ALL- Description ESC ->EXIT16 PGEOGRAPH CALL is received within the specific areas.1) When received GEOGRAPHY Call, press ant buttons except ENT, ESC to stop thealarm. Channel is changed to the designated channel on the automatically received DSCCall. Time and USER MMSI or Name is displayed on the screen.2) Go through monitoring the specified channel from calling vessel.