Soon after Mohamed Suleiman entered the telecoms office in the coastal city of Port Sudan on 13 January he started to cry. He hadn't heard his phone ring for most of Sudan's civil war, which began exactly three years ago following a power struggle between the army and its then-ally, the Rapid Support Forces (RSF) paramilitary group. The journalist and academic had made it to Port Sudan after being trapped in the western city of el-Fasher, largely cut off from the world by a communications