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Push-to-Talk
Services in the US: Carrier Services and Opportunities
December
2003
62 Pages
Authors:
Liz Kerton, Managing Director
Bin Hu, Senior Analyst
Price: $1495
Introduction
Push-To-Talk
(PTT) is an instant, half-duplex communication medium that
allows callers to connect rapidly with each other and
enjoy short, bursty conversations that get the important
parts of the message across in less time than a phone
call. When PTT is introduced into a cellular network the
use of private channels, and a range as large at that of
the underlying cellular network exponentially increase its
advantages. A key driver of PTT is one-to-many group
conversations, where the calling-party can instantly and
simultaneously communicate with all the members in a
group. One such call could replace a dozen individual
calls, making the productivity case very clear.
Table
of Contents
1.
EXECUTIVE SUMMARY 1
2. INTRODUCTION TO PUSH-TO-TALK IN THE US 3
3. THE PTT BUSINESS IN THE US 12
3.1. PTT MARKET ANALYSIS 12
3.2. MARKET SEGMENTATION 17
3.3. BUSINESS MODELS 19
3.4. OPERATORS 23
3.5. VENDORS 32
3.6. HANDSETS & TERMINALS 38
4. PTT NETWORK TECHNOLOGY 40
4.1. TWO-STATION PTT (WALKIE-TALKIES) 40
4.2. PTT IN IDEN CELLULAR NETWORKS 40
4.3. PTT IN NON-IDEN CELLULAR NETWORKS: POC41
4.4. PTT IN 3G NETWORKS (EDGE, UMTS, EV-DO) 42
4.5. POC SYSTEM ARCHITECTURE 42
4.6. POC PROTOCOLS 46
4.7. POC CALL FLOW 47
4.8. POC VOICE CODEC48
4.9. ASP OR EXTRA-NETWORK SERVICE SOLUTIONS 48
4.10. NETWORK UTILIZATION 49
4.11. QUALITY OF SERVICE 50
4.12. COMPARATIVE ANALYSIS 52
5. THE NEXT FEW YEARS 53
6. CONCLUSIONS AND RECOMMENDATIONS 55
7. ADDENDA 58
7.1. METHODOLOGY 58
7.2. ABOUT THE KERTON GROUP 58
7.3. EXHIBIT A: ACRONYM GLOSSARY 59
Abstract
Available
5 page abstract
available in PDF
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Research
Good information is the foundation for good business decisions. The Kerton Group provides primary and secondary research and analysis across the entire wireless sector.
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