JOINT FILING AGREEMENT

Exhibit 1

Schedule 13D

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.

Dated:  October 7, 2013

		PORTUGAL TELECOM, SGPS, S.A.
		By:	/s/ Xxxxxxxx Xxxxxxxxxx
			Name:	Xxxxxxxx Xxxxxxxxxx
			Title:	Chief Executive Officer
		By:	/s/ Xxxx Xxxxxxx xx Xxxx
			Name:	Xxxx Xxxxxxx xx Xxxx
			Title:	Chief Financial Officer
		PT PORTUGAL, SGPS, S.A.
		By:	/s/ Xxxx Xxxxxxx xx Xxxx
			Name:	Xxxx Xxxxxxx xx Xxxx
			Title:	Vice President
		By:	/s/ Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Name:	Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Title:	Executive Member of the Board of Directors

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		PT COMUNICAÇÕES, S.A.
		By:	/s/ Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Name:	Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Title:	Executive Member of the Board of Directors
		By:	/s/ Xxxxxx Xxxxxx
			Name:	Xxxxxx Xxxxxx
			Title:	Executive Member of the Board of Directors
		TMN – TELECOMUNICAÇÕES MÓVEIS NACIONAIS S.A.
		By:	/s/ Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Name:	Xxxxxx Xxxxxxxxx Xxxx xx Xxxxx
			Title:	Executive Member of the Board of Directors
		By:	/s/ Xxxxxx Xxxxxx
			Name:	Xxxxxx Xxxxxx
			Title:	Executive Member of the Board of Directors
		PT MÓVEIS, SGPS, S.A.
		By:	/s/ Xxxxxxxx Xxxxxxxxxx
			Name:	Xxxxxxxx Xxxxxxxxxx
			Title:	Chairman of the Board of Directors
		By:	/s/ Xxxx Xxxxxxx xx Xxxx
			Name:	Xxxx Xxxxxxx xx Xxxx
			Title:	Executive Member of the Board of Directors

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		BRATEL B.V.
		By:	/s/ C.C. van den Broek
			Name:	C.C. van den Broek
			Title:	Director B
		By:	/s/ Xxxxxx Xxxx
			Name:	Xxxxxx Xxxx
			Title:	Director A
		BRATEL BRASIL S.A.
		By:	/s/ Shakhaf Wine
			Name:	Shakhaf Wine
			Title:	President
		By:	/s/ Xxxxx Xxxxxxxx
			Name:	Xxxxx Xxxxxxxx
			Title:	Director

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