Exhibit 1
JOINT FILING AGREEMENT
The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate.
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Dated: June 13, 2012 | |
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| PORTUGAL TELECOM, SGPS, S.A. |
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| By: | /s/ Zeinal Bava |
| | Name: | Zeinal Bava |
| | Title: | Chief Executive Officer |
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| By: | /s/ Luis Pacheco de Melo |
| | Name: | Luis Pacheco de Melo |
| | Title: | Chief Financial Officer |
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| PT PORTUGAL, SGPS, S.A. |
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| By: | /s/ Zeinal Bava |
| | Name: | Zeinal Bava |
| | Title: | Chairman of the Board of Directors |
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| By: | /s/ Francisco Silva Nunes |
| | Name: | Francisco Silva Nunes |
| | Title: | Executive Member of the Board of Directors |
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| PT COMUNICAÇÕES, S.A. |
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| By: | /s/ Zeinal Bava |
| | Name: | Zeinal Bava |
| | Title: | Chairman of the Board of Directors |
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| By: | /s/ Francisco Silva Nunes |
| | Name: | Francisco Silva Nunes |
| | Title: | Executive Member of the Board of Directors |
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| TMN — TELECOMUNICAÇÕES MÓVEIS NACIONAIS S.A. |
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| By: | /s/ Zeinal Bava |
| | Name: | Zeinal Bava |
| | Title: | Chairman of the Board of Directors |
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| By: | /s/ Francisco Silva Nunes |
| | Name: | Francisco Silva Nunes |
| | Title: | Executive Member of the Board of Directors |
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| PT MÓVEIS, SGPS, S.A. |
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| By: | /s/ Zeinal Bava |
| | Name: | Zeinal Bava |
| | Title: | Chairman of the Board of Directors |
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| By: | /s/ Luis Pacheco de Melo |
| | Name: | Luis Pacheco de Melo |
| | Title: | Executive Member of the Board of Directors |
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| BRATEL B.V. |
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| By: | /s/ C.C. van den Broek |
| | Name: | C.C. van den Broek |
| | Title: | Director B |
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| BRATEL BRASIL S.A. |
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| By: | /s/ Pedro Guterres |
| | Name: | Pedro Guterres |
| | Title: | Director |
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| By: | /s/ Anna Laura Baraf Svartman |
| | Name: | Anna Laura Baraf Svartman |
| | Title: | Director |