You know you are in Africa when you monitor the Tower frequency and hear the initial call of an Airliner:
"Tower good afternoon, ABC, self established ILS 21"
No response from tower. Later on:
"Tower, again this is ABC, we are on short final runway 21."
Of course, no response from the tower.
"Tower, äh, ABC, runway 21, we're gonna land..."
Tower replies: "ABC, roger, thereafter taxi to your stand as usual."
Answer by the aircraft was just a doubleclick on the mic... that was all, nothing else to be said