In pictures: Building Africa's mobile highway
High point

Mobile base stations are often built on high ground in order to provide the best line of sight for transmission to the next tower in the line, which is usually around 25km away.

This Celtel tower, which overlooks the border with Rwanda, will carry calls back to a central mobile switching centre, where users are connected.

Click below for more images
1 2 3 4 5 6 7 8 9 10