10-4
Message received, understood, acknowledged
10-5
Relay message
10-6
Busy, please standby
10-7
Out of service, off the air
10-8
In-service, available
10-9
Enroute with patient / patient on board
10-12
Can’t explain / relatives on board
10-19
Return to base
10-20
Report present location
10-21
Call by landline
10-23
At standby location
10-26
Cancel detail
10-32
Paramedic Down
10-33
Emergency Message
10-90
Meal Break
10-200
Police
10-2000
Urgent Police Assistance required by EMS crew