Ericsson has been chosen by AIS to expand the Thai carrier's existing GSM/EDGE network in Bangkok in a contract worth $110 million.
The expansion will allow AIS to increase both its network coverage and capacity, Ericsson in a statement said.
Under the agreement, Ericsson will have turnkey responsibility for building the network, providing network design, deployment and integration services, including core and radio network.
Ericsson will also provide its spare part management service, lowering AIS's operational costs, the company said.
'The selection of Ericsson reinforces the existing close partnership between the two companies and ensures that we have a world-leading provider of proven mobile technology,' Wichien Mektrakarn, president of AIS, said.