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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2019
SIGNIFICANT ACCOUNTING POLICIES |
Schedule of depreciation and estimated useful lives of property, plant and equipment |
|  | Estimated Useful
|  | Life (in years)
Real Estate |  | 50
Fixed Network and Transportation |  | 5 – 10
Mobile Network Access |  | 3 – 7
Tower and Pole |  | 10 – 20
Switching Equipment |  | 5 – 7
Computer Equipment |  | 3 – 5
Vehicles |  | 5
Goods lent to customers at no cost |  | 2 – 4
Power Equipment and Installations |  | 2 – 12
Machinery, diverse equipment and tools |  | 5 – 10
Schedule of assumptions used in determining expense and benefit obligations |
|  | 2019 |  | 2018 |  | 2017 |
Discount Rate (1) |  | 6.4% - 15.0 | % | 6.4 %-15.2 | % | 4.6 % - 9.2 | %
Projected increase rate in compensation |  | 10.0% - 48.3 | % | 10.0 %-31.2 | % | 8.0 % - 16.3 | %
1)Represents estimates of real interest rate rather than nominal rate.
Schedule of composition of Rights of use assets net carrying value, valued at amortized cost |
|  | January 1, 2019 |  | December 31, 2019
Poles |  | 466 |  | 216
Real estate and other |  | 1,147 |  | 1,471
Sites and other |  | 4,880 |  | 6,613
Occupation fee |  | 397 |  | 350
Asset Retirement Obligation |  | 247 |  | 253
Indefeasible rights of use |  | 626 |  | 541
At the end of the period (1) |  | 7,763 |  | 9,444
(1) Includes $1,160 and $1,013 corresponding to Núcleo as of January 1, 2019 and December 31, 2019, respectively.

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