i) PP&E
PP&E is stated at acquisition or construction cost. Subsequent expenditures are capitalized only when they represent an improvement, it is probable that future economic benefits associated with the item will flow to the Company and the cost of the item can be measured reliably.
All other subsequent costs are recognized as expense in the period in which they are incurred, unless they are improvements. When a tangible fixed asset comprises major components having different useful lives, these components are accounted for as separate items if they are significant.
PP&E cost also includes the expected costs of dismantling the asset and restoring the site if a legal or constructive obligation exists. The corresponding liability is recognized in the statement of financial position under Provisions line item at its present value. These capitalized costs are depreciated and charged to the consolidated income statement over the useful life of the related tangible assets in the Depreciation and amortization item line.
The accounting estimates for dismantling costs, including discount rates, and the dates in which such costs are expected to be incurred are annually reviewed. Changes in the above liability are recognized as an increase or decrease of the cost of the relative asset and are depreciated prospectively.
Depreciation of PP&E owned is calculated on a straight-line basis over the ranges of estimated useful lives of the assets; the ranges of the estimated useful lives of the main PP&E are the following:
Asset |
|
Estimated useful |
Buildings received from ENTel |
|
35 |
Buildings acquired subsequent to 11/8/90 |
|
50 |
Improvements in third parties buildings |
|
2 – 5 |
Tower and pole |
|
10 – 20 |
Transmission equipment |
|
3 – 20 |
Wireless network access |
|
3 – 7 |
Switching equipment |
|
5 – 7 |
Power equipment |
|
7 – 15 |
External wiring |
|
3 – 20 |
Computer equipment and software |
|
3 – 5 |
Telephony equipment and instruments |
|
5 |
Installations |
|
2 – 10 |
The depreciation rates are reviewed annually and revised if the current estimated useful life is different from that estimated previously taking into account, among others, technological obsolescence, maintenance and condition of the assets and different intended use from previous estimates. The effect of such changes is recognized prospectively in the consolidated income statement.