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OPERATION, MAINTENANCE AND TELECOMMUNICATION SERVICE EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2021
OPERATION, MAINTENANCE AND TELECOMMUNICATION SERVICE EXPENSES |
Summary of operational maintenance and telecommunication service expenses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2020 |  | 2021
Operation and maintenance |  | 20,417 |  | 19,956 |  | 21,467
Radio frequency usage charges (Note 34c.i) |  | 5,736 |  | 5,930 |  | 6,097
Leased lines and Customer Premises Equipment ("CPE") |  | 4,709 |  | 3,353 |  | 5,003
Concession fees and USO charges (Note 34c.iii) |  | 2,370 |  | 2,411 |  | 2,472
Electricity, gas, and water |  | 1,102 |  | 946 |  | 898
Cost of SIM cards and vouchers (Note 8) |  | 645 |  | 487 |  | 673
Project management |  | 460 | ​ | 538 | ​ | 519
Insurance |  | 246 |  | 378 |  | 432
Vehicles rental and supporting facilities |  | 386 |  | 334 |  | 305
Cost of sales of peripherals (Note 8) |  | 1,109 |  | 57 |  | 66
Others (each below Rp75 billion) |  | 273 |  | 185 |  | 201
Total |  | 37,453 |  | 34,575 |  | 38,133

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