a a a







Consolidated
2009 2008
Annual average depreciation rate %
Cost Accumulated Depreciation Net Net
Switching / transmission equipment 8 to 14.29        
Optical fiber cables 4 to 10 428,141 (249,201) 178,940 -
Loan-for-use handsets 50 1,212,042 (865,764) 346,278 316,846
Infrastructure 33.33 2,055,427 (1,095,396) 960,031 912,723
Leasehold improvements 33.33 124,241 (99,778) 24,463 33,946
Computer assets 20 1,160,437 (1,010,088) 150,349 244,407
General use assets 4 to 10 442,565 (213,101) 229,464 209,186
Assets and facilities in use 14,366,819 (9,736,346) 4,630,473 4,494,254
  
Plots of land 37,622 - 37,622 27,790
 
Construction work in progress 655,079 - 655,079 277,048
15,059,520 (9,736,346) 5,323,174 4,799,092


The construction work in progress basically refers to the construction of new transmission units (Base Radio Broadcast Station – ERB) for network expansion.

In 2009, the subsidiaries capitalized as property, plant and equipment the amount of R$2,145 (R$2,647 in 2008) referring to interest on loans that financed their construction.

Operating technologies

The subsidiaries' operate their service network using TDMA, GSM and 3G technologies. At December 31, 2009, no provision for loss on recovery of property, plant and equipment was deemed necessary. The assets related to TDMA technology are fully depreciated.