 Kallon was capped several times for Sierra Leone between 1990 and 1998, and scored two goals in a 5–1 win against Niger in order to qualify Sierra Leone qualify for the 1996 African Cup of Nations in South Africa.After retiring as a player, Kallon also coached the Sierra Leone U-17 side in the 2003 FIFA U-17 World Championship in Finland after managing a second place finish in the 2003 African U-17 Championship.In 2007 he coached Central Parade.