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ZTE Demos VoIP Call on CDMA2000 System

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February 25, 2009

ZTE Demos VoIP Call on CDMA2000 System

By Rajani Baburajan, TMCnet Contributor

ZTE Corporation, a global provider of telecommunications equipment and network solutions, reportedly announced the first-ever Evolution-Data Optimized Rev.B (News - Alert) VoIP call on its Code Division Multiple Access 2000 system.

The company claims that this is the first time in the industry that a CDMA vendor has achieved a 9.3 Mbps download rate and 5.4 Mbps upload rate.
EV-DO is a telecommunications standard evolved from CDMA2000 for the wireless transmission of data through radio signals, typically for broadband Internet access. It is standardized by 3rd Generation Partnership Project 2 as part of the CDMA2000 family of standards.
Important features of EV-DO Rev.B include allocating flexible bandwidth and offering better QoS, which combine to enhance users’ experiences, company officials say. EV-DO supports high data rates and could be deployed alongside a wireless carrier’s voice services. The technology standard has been adopted by many mobile phone service providers worldwide, particularly those previously employing CDMA networks.
Officials said ZTE (News - Alert) has completed the first stage of achieving EV-DO Rev.B and adopted 3-carrier bundling technology, with each carrier having a bandwidth of 1.25 MHz. Compared with mature commercial EV-DO Rev.A, ZTE’s EV-DO Rev.B only upgrades EV-DO Rev.A’s software, with no additional hardware equipment required. Both ZTE’s EV-DO Rev.A and Rev.B adopt identical baseband chipset.

“In order to meet customers’ demand in addressing advanced network evolution, we launch the world’s first EV-DO Rev.B technology several months ahead of our rivals,” said Li Jian, general manager of CDMA Products at ZTE. “We are committed to the industry and continue to invest and speed up large-scale commercial use of EV-DO Rev.B to leverage telecom operators’ investment in EV-DO Rev A networks.”
Currently, there are more than 105 million EV-DO users worldwide. ZTE has established 70 EV-DO networks in more than 60 countries, including China, the United States, Czech Republic, Poland, India and Indonesia. The company plans to commercialize its EV-DO Rev.B system in Q3 2009, officials said.

The future EV-DO Rev.B will be capable of bundling up to a maximum of 15 carriers, with a download (forward) rate of 73.5 Mbps and an upload (reverse) rate of 27 Mbps, ZTE said.
ZTE claims to have one third of China’s CDMA market share. Its global CDMA subscriber capacity is approaching 200 million.

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Rajani Baburajan is a contributing editor for TMCnet. To read more of Rajani's articles, please visit her columnist page.

Edited by Michael Dinan

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