Vietnamobile Telecommunications Joint Stock Company, a mobile network operator, has expanded its 4G coverage to all 20 southern provinces, company officials announced at a press conference on Thursday in HCM City.

The company is the first of its kind to apply a network aggregation technique to expand its large scale 4G network, by combining two frequency bands, a 900Mhz low band and 2100Mhz high band.

Vietnamobile is also launching a new SIM line called Sieu Thanh Up. By spending at least VND50,000 or more per month, users can enjoy free daily 4G data, free daily on-net calling and texting, and VND680 per minute of off-net calling, in addition to other rewards.

Vietnamobile has improved its network to provide better indoor mobile coverage and more consistent data connectivity, Hoang Minh Hai, Vietnamobile chief of technology, said. — VNS