: This paper investigates the possible effects of the US reform of the international settlement rate system on telecommunications investment in Africa. We estimate a telecommunications investment equation using a panel data of 51 African countries during the 1991–2003 period and find that settlement payments have significantly positive effects on telecommunications investment in African countries. A 10 percent increase in settlement payment, on average, increases the telecommunications investment expenditure to GDP ratio by 3.4 percent over a three-year period. Using previously calculated revenue loss from the US reform, our estimates suggest that African countries stand to lose between 4.4 to 11 percentage points of their telecommunications investment in the medium run and with it, possible decreases in income growth rate. However, we argue that African countries can counter the effects of this revenue loss by increasing the efficiency of telecommunications investment through appropriate market restructuring, including the promotion of competition and privatization.