From time to time messages or reports are long and will require a break to ensure that the sent part has been received correctly, instead of getting to the end of the message and having to use repetitions.
The pro word to be used is “So far”
THEM: Alpha 9, FROM CONTROL, OVER
YOU: Alpha 9, GO AHEAD OVER
THEM: Alpha 9, We have a change of plan, please go to area 1 via the green route, SO FAR, OVER
YOU: Alpha 9, So far, OVER
THEM: Alpha 9, Meet Romeo 505 at the main door and collect the red bag, SO FAR, OVER
YOU: Alpha 9, So far, OVER
THEM: Alpha 9, Take the bag to area 2 and pass to Romeo 606, OVER
YOU: Alpha 9, All received, OVER
THEM: Alpha 9, Thanks, CONTROL OUT