关键词：VoLTE；语音呼叫；LTE网络；2G；3G网络
摘 要：VoLTE is technology that enables voice calls over an LTE network, as opposed to the earlie technology that supported voice calls over 2G and 3G networks. This is quite similar to VoIP that is used to support voice calls over a broadband connection. Unlike VoIP, which sends voice over circuit-switched networks, VoLTE sends voice calls over IP-based LTE networks. It harnesses the excellent data capabilities of LTE with revenue-generating traditional voice services onto the same LTE network. The idea is based on converting voice signals into packet data, transferring it over the broadband network, and finally reconverting packet data back into voice signals.Currently, operators are running both voice and data over two distinct networks. VoLTE enables them to merge both, which results in better quality and efficiency. Currently, VoLTE is the most important application of the LTE mobile network in the Telecom industry.
目 录：

01. Executive Summary

02. List of Abbreviations

03. Scope of the Report

03.1 Market Overview

03.2 Service Offerings

04. Market Research Methodology

04.1 Market Research Process

04.2 Research Methodology

05. Introduction

06. Aligning VoLTE Networks

06.1 VoLTE Alternatives: CSFB and OTT

06.2 Voice Strategy Based on LTE Coverage

06.3 Evolution to Mainstream VoLTE

07. Market Landscape

07.1 Market Overview

07.2 Market Size and Forecast

07.2.1 Global VoLTE Subscriber Base 2013-2018

07.2.2 Global LTE Commercial Networks Deployment 2013-2018

07.2.3 Global VoLTE-enabled Handsets Production 2013-2018

07.3 Five Forces Analysis

08. Geographical Segmentation

09. Key Leading Countries

South Korea

US

10. Buying Criteria

11. Market Growth Drivers

12. Drivers and their Impact

13. Market Challenges

14. Impact of Drivers and Challenges

15. Market Trends

16. Trends and their Impact

17. Vendor Landscape: VoLTE Service Providers

17.1 Competitive Scenario

18. Vendor Landscape for VoLTE Equipment

Manufacturers

18.1 Competitive Scenario

18.2 Market Share Analysis

19. Key Vendor Analysis

19.1 Alcatel-Lucent

19.1.1 Key Facts

19.1.2 Business Overview

19.1.3 Business Segmentation

19.1.4 Business Segmentation by Revenue 2012 and 2013

19.1.5 Geographical Segmentation by Revenue 2013

19.1.6 Business Strategy

19.1.7 Recent Developments

19.1.8 SWOT Analysis

19.2 AT&T

19.2.1 Key Facts

19.2.2 Business Overview

19.2.3 Business Segmentation by Revenue 2013

19.2.4 Business Segmentation by Revenue 2012 and 2013

19.2.5 Business Strategy

19.2.6 Recent Developments

19.2.7 SWOT Analysis

19.3 KT

19.3.1 Key Facts

19.3.2 Business Overview

19.3.3 Business Segmentation by Revenue 2013

19.3.4 Business Segmentation by Revenue 2012 and 2013

19.3.5 Geographical Segmentation by Revenue 2013

19.3.6 Recent Developments

19.3.7 SWOT Analysis

19.4 LG Uplus

19.4.1 Key Facts

19.4.2 Business Overview

19.4.3 Recent Developments

19.4.4 SWOT Analysis

19.5 SK Telecom

19.5.1 Key Facts

19.5.2 Business Overview

19.5.3 Recent Developments

19.5.4 SWOT Analysis

19.6 Ericsson

19.6.1 Key Facts

19.6.2 Business Overview

19.6.3 Business Segmentation by Revenue 2013

19.6.4 Business Segmentation by Revenue 2012 and 2013

19.6.5 Geographical Segmentation by Revenue 2013

19.6.6 Recent Developments

19.6.7 SWOT Analysis

19.7 Huawei Investment & Holding

19.7.1 Key Facts

19.7.2 Business Overview

19.7.3 Business Segmentation by Revenue 2013

19.7.4 Business Segmentation by Revenue 2012 and 2013

19.7.5 Sales by Geography 2013

19.7.6 Business Strategy

19.7.7 Recent Developments

19.7.8 SWOT Analysis

19.7.9 Strengths

19.7.10 Weaknesses

19.7.11 Opportunities

19.7.12 Threats

19.8 Nokia Solutions and Networks

19.8.1 Key Facts

19.8.2 Business Overview

19.8.3 Business Segmentation by Revenue 2013

19.8.4 Business Segmentation by Revenue 2012 and 2013

19.8.5 Geographical Segmentation by Revenue 2013

19.8.6 Business Strategy

19.8.7 Recent Developments

19.8.8 SWOT Analysis

20. Other Reports in this Series