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V.VoIP, a reality with the launch of Mobile Broadband 4G LTE Networks

Krishna Yarlagadda
Monday, October 3, 2011
Krishna Yarlagadda
Consumers and Enterprise users are both eagerly waiting for the high resolution, good quality, 2-way, video and voice-chat for years now. This is all the more important for Silicon India Parivaar, who has their folks, eight thousand miles away. Their dream got close to reality, with Apple launching the Facetime, and multiple Video and VoIP applications on Android devices. But these have their own limitations--migrating between the networks and compensating for packet losses in the real-time environment. Apart from the client issues, the media quality was un-acceptable on 3G networks, due to bandwidth limitations and limited coverage of 4G WiMax Networks. This article provides an overview of some of the challenges for implementing a V.VoIP, in a real-time environment and possible improvements on 4G LTE networks.

V.VoIP, over the fixed broadband (both Cable & DSL), has been around for quite some time, has been deployed and very well-accepted globally. The primary factors that contributed to its success were the guaranteed QoS, low latency, high capacity, and hence acceptable user-experience. Second and Third generation wireless-technologies, have not be able to cater to the user requirements to offer reliable V.VoIP service. While the fourth generation WiMax network was a teaser, the LTE network guarantees all the primary requirements mentioned above--bringing revolution to the world of mobile V.VoIP. LTE is now rapidly gaining momentum, with large mobile operators like AT&T, Verizon, MetroPCS, Vodafone, China Mobile, DoCoMo, showing a sense of urgency to deploy the LTE networks in short order. This is first time ever that the operators are committed to using the Mobile broadband pipe for Voice communication. Many have already announced their plans to launch the Voice, over LTE (VoLTE) service in near future, with some launching as early as the first quarter of next year. While there were attempts made in the past to bring the voice over IP networks in a Mobile perspective, they have not been as successful due to the lack of support from the network infrastructure and operators. There was increased pressure on the operators to adopt the superior quality Video and VoIP over the mobile broadband networks, since the evolution of Smartphones.

SmartPhone penetration is expected to flourish many folds over the next few years. About 65 percent of the U.S. population, or over 200 million people, will have a smartphone and/or tablet in 2015, according to the research firm In-Stat. Most of the Smartphones shipping today have multiple GHz processors, integrated with high-end graphics and video hardware; thus enabling superior quality V.VoIP user experience. Today’s SmartPhones, invariably have large screens; thus further improving the end-users viewing experience.

User expectations for a rich multi-media experience have exponentially increased, with the rapid growth of LTE and Smartphones. Key factors that determine the success of V.VoIP technology are as follows:

1. Improved User Experience

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