KartuHALO is the post-paid cellular card which issued by PT Telkomsel. Simpati itself is the pre-paid service. Telkomsel is an Indonesian cellular telecommunication company. It is a subsidiary of PT TELKOM. Telkomsel claims itself as the biggest GSM provider in Indonesia and the first company in Asia... 

Telkomsel is the leading Indonesian cellular telecommunication company. It is a subsidiary of PT TELKOM. Telkomsel claims itself as the biggest GSM provider in Indonesia and the first company in Asia that offered GSM prepaid service. Telkomsel services comes in the products such as KartuHALO, simPATI,...