twice connect

4G LTE Cellular To Speak With 2 Voices

11/04/2009 10:48:29 AM Eastern

- Major cellular carriers, handset vendors, and infrastructure worldwide agreed
on another international standard to add voice calling and SMS text messaging to
the 4G LTE (Long Term Evolution) cellular-data standard, which uses the
Internet Protocol (IP) to deliver high-speed data.

The VoiceOne
, endorsed by 12 companies, competes with the VoLGA
(Voice over LTE via Generic Access) standard, approved in September by the 21 handset
vendors, infrastructure makers and carriers in the VoLGA Forum. The forum members
are Alcatel-Lucent, carrier Deutsche Telekom (T-Mobile), Ditech Networks,
GENBAND, HTC, Huawei, Kineto Wireless, LG
Electronics, Mavenir, Motorola, Nortel, Samsung, Sonus, Starent Networks,
Tecore Networks, Ulticom, WiChorus and ZTE.

Only 12 companies have endorsed the VoiceOne standard, but they
include more carriers than VoLGA's Deutsche
Telekom. Carriers endorsing VoiceOne are AT&T, Orange,
Telefonica, TeliaSonera, Verizon, and Vodafone. Infrastructure companies endorsing
VoiceOne are Alcatel-Lucent, Ericsson, and Nokia Siemens Networks. Supporting
handset vendors are Nokia, Samsung, and Sony Ericsson.

A voice-over-LTE standard will help
carriers boost data and voice capacity by migrating consumers from more
bandwidth-eating circuit-switched voice technologies, and it will help guarantee
international roaming and interoperability for LTE voice and SMS services. In
Verizon Wireless filed trials, LTE has delivered peak data rates of 50-60Mbps

VoiceOne is based on IP Multimedia Subsystem (IMS) defined by an
international group called the 3GPP (Third Generation Partnership Project). IMS is a standard that works on both
a broadband wireline network and a wireless network.

Verizon plans to launch LTE in its 700MHz spectrum in 25 to 30 markets
in 2010 and cover virtually all of its current nationwide 3G footprint with LTE by the end of 2013, the company said.


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