| Vivo (mobile Phone Network) |
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Information AboutVivo (mobile Phone Network) |
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Vivo ( service provider in Brazil and in South America with over 30 million users. It originated from the merger of several Brazilian mobile phone operations under a joint-venture owned equally by Portuguese Portugal Telecom and Spanish Telefónica Móviles . Most of its network is IS-95 / CdmaOne based, although there are parts of it which are still analog AMPS and parts (resulting from acquisition of other companies) which are TDMA ( IS-136 ) based. The network is being gradually converted to CDMA2000 . The Vivo brand was launched on April 13th 2003 . The following operators merged to form Vivo: Portugal Telecom-owned
Telefónica-owned
Acquired by the joint venture
Until 2006 , the group was composed of six holding companies which, as announced in November 2005 , merged into a single holding company, Vivo Participações S.A.. The operation was concluded on February 22nd 2006. EXTERNAL LINKS |
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