japans kddi sumitomo corp to invest bln in myanmar telecoms although tanzania has long had a competitive mobile market the entry of vietnamese owned viettel operating under the brand halotel in october caused disruption it launched a g only service on the back of extensive investment in a fiber optic backbone emphasizing that it was possible to bridge the internet gap in a short period of time halotels entry triggered a price war with a mb mobile internet package dropping between and resulting in affordability reaching the threshold of less than of gni